Monthly Archives: October 2025

Galileo, What Hast Thou Wrought?

2 Replies

Today we continue our study of how the statement, “I am a woman trapped in a man’s body” (Carl R. Trueman, The Rise and Triumph of the Modern Self, p. 19), came to be taken seriously by millions of intelligent people. The previous essay explained why no one before 1500 could have comprehended the modern dichotomy between the external appearances of such things as the male and female bodies and their internal reality. At the conclusion of that essay, I promised that in the next part “we will see how the architects of the scientific revolution—Galileo, Bacon, Descartes, et al.—destroyed confidence in the reality of forms and souls and replaced them with atoms, space, and machines. The appearances no longer reveal the reality of things. Creation is emptied of spiritual reality, meaning, purpose, moral law, and beauty, all of which are transferred to the inner subjective world of the human mind.” We begin that saga with Galileo Galilei.

Galileo Versus Aristotle

Students of nature before Galileo assumed that the way things appear to us reveals something about their inner reality and that the inner reality of things manifests itself truly in their external appearances. The meaning, purpose, beauty, moral law, and value we experience in our minds also exists in nature. The goal of Aristotelian science was understanding how all these qualities are embedded in the natures of the things themselves. However, by the time Galileo (1564-1642) came to maturity in the early seventeenth century, such thinkers as Francis Bacon (1561-1626), Rene Descartes (1596-1650), and Johannes Kepler (1571-1630) were already complaining that the doctrine of forms contributed nothing to our empirical understanding of things. Mysterious forms, whether they are real or not, cannot be clearly thought and have no value for making predictions, discovering laws, and creating technology. And for reasons I do not understand, achieving these goals had become the driving force of the emerging scientific revolution.

Galileo and the Mathematization of Nature

Galileo believed that applying mathematics to nature was the only way to achieve his practical goals. Numbers and mathematical operations are clear and simple, and when we see the value of a mathematical expression or equation, we become certain of its truth. To understand nature, argued Galileo, we should set aside questions about its mysterious inner nature, the ways it appears to us, and the way it makes us feel; these are irrelevant to achieving the goals of the new science. We will then be free to work out the mathematical laws of nature’s movements and transformations. At last, we can understand nature as clearly as we understand mathematics!

Unforeseen and Unintended Consequences

To modern ears, Galileo’s philosophy of science and his revisions to the scientific method sound familiar and innocent. Whatever Galileo’s intentions, however, his innovations produced a profound moral and religious revolution. For by limiting science to knowledge that can be expressed in mathematics, Galileo, Descartes, et al, broke decisively (1) with the traditional belief that things reveal their inner reality in their outward appearances, and (2) with the corresponding belief that the inner worlds of things in nature are intelligible and mindlike in a way similar to the inner world of the human mind.

The Distinction Between Primary and Secondary Qualities

Perhaps Galileo and other pioneers of the scientific revolution could have narrowed science to what can be understood in mathematical terms without postulating an alternative to Aristotle’s intelligible forms as the cause of the way things appear to us. But they did not exercise such restraint. Instead, they replaced Aristotle’s inner forms and souls with imperceptible material atoms or corpuscles, which possess only mathematically measurable properties: shape, movement, mass, velocity, etc. In ways Galileo and Descartes cannot explain, these material particles cause us to experience the world in a human way. By distinguishing primary qualities (material, mechanical, and mathematical) from secondary qualities (psychological, organic, and qualitative), they drove a wedge between the way human beings experience the world and the world as it is apart from human perception. The only bridge between the two is mathematics. Listen to Galileo, Descartes, and Locke drive this point home:

“To excite in us tastes, odors, and sounds I believe that nothing is required in external bodies except shapes, numbers, and slow or rapid movements. I think that if ears, tongues, and noses were removed, shapes and numbers and motions would remain, but not odors or tastes or sounds. The latter, I believe, are nothing more than names when separated from living beings, just as tickling and titillation are nothing but names in the absence of such things as noses and armpits” (The Assayer, 1623).

“The properties in external objects to which we apply terms light, color, smell, taste, sound, heat and cold—as well as other tactile qualities…are so far as we can see, simply various dispositions in the shapes, sizes, positions, and movements of their parts which make them able to set up various kinds of motions in our nerves which are required to produce all the various sensations in the soul” (Descartes, The Principles of Philosophy, 1644; Quoted in Cottingham, A Descartes Dictionary, p. 149).

“These I call original or primary qualities of body, which I think we may observe to produce simple ideas in us, viz. solidity, extension, figure, motion or rest, and number. Secondly, such qualities which in truth are nothing in objects themselves but powers to produce various sensations in us by their primary qualities, i.e. by bulk, figure, texture, and motion of their insensible parts, as colors, sounds, tastes, etc. These I call secondary qualities”(John Locke, Essay Concerning Human Understanding, 1698, II. 8)

Oh Galileo! What Hast Thou Wrought?

Galileo convinced the world that the variety and obscurity of the natural order could be reduced to the clarity and certainty of simple mathematical equations. Modern advances in understanding the mathematical laws of nature and the explosion of technological innovation rely on this supposition. But at what cost?  God’s glorious creation has fallen silent, emptied of spiritual reality, meaning, depth, mystery, purpose, moral law, and beauty, all of which have been transferred to the inner subjective world of the human mind. But how can we continue believing in the reality of meaning, depth, mystery, purpose, moral law, and beauty, if we think of them as existing only in the human psyche? They seem to be hanging in midair with no confirmation in common experience or foundation in an enduring reality.

Aristotle and all the ancients believed in the likeness and harmony between the human world and the natural world. This belief seemed reasonable, obvious even, because humans are part of the natural world. Galileo, Descartes and others split them apart, dividing the qualities we experience into the objective (real) and subjective (psychological) spheres. Human beings became islands of mind in a sea of mindless matter. It was inevitable that this division would become intolerable…that the human mind and soul would be reunited to nature by reducing them to something simpler. Sooner or later some thinker would do to the human soul what Galileo had done to the solar system.

And that “someone” was John Locke.

The Abolition of Creation and the Gender Revolution (Part One)

Leave a reply

Why This Series?

Recently a group of ministers from one of the most secular regions of the United States asked me to present a series of lectures on the challenges contemporary secular culture poses to the church, specifically the popular hostility toward the moral vision of life taught in the New Testament and treasured by the church for 2000 years. Some of them had read my 14-part critical review (September and October 2021) of Karen Keen, Scripture, Ethics, and the Possibility of Same-Sex Relationships* and wanted me to follow up with a more comprehensive treatment. I proposed to address the topic under four headings:

The Abolition of Creation

The Abolition of the Biblical Text

Reclaiming Creation

Reclaiming the Biblical Text

In the next few posts, I want to develop these topics in preparation for my presentations. Perhaps readers can help me refine my thought.

The Darkening of Creation

From July 22 to August 6, 2021, I wrote a five-part review of Carl R. Trueman, The Rise and Triumph of the Modern Self: Cultural Amnesia, Expressive Individualism, and the Road to the Sexual Revolution (Crossway, 2020). Trueman explains the origin and agenda of his book in this way:

“The origins of this book lie in my curiosity about how and why a particular statement has come to be regarded as coherent and meaningful: “I am a woman trapped in a man’s body” (p. 19).

Like Truman, I am curious about how this change occurred. What factors led people to abandon the moral significance of the order of nature? How could so fundamental a distinction as the biological difference between male and female be completely disengaged from human identity?** Truman began his study with Jean Jacques Rousseau and traced the sexual revolution from the 18th to the 21st century. I will interact with some of the same thinkers as Truman did, but instead of beginning with Rousseau I will begin with Galileo and the scientific revolution. Truman did not describe extensively the premodern understanding of nature and natural law. But I think it is important to explain how Plato, Aristotle, and later Christian philosophers understood and experienced nature. Only then, I think, can we understand what forces led to the abolition of creation as a source of moral guidance and spiritual inspiration. This essay will be devoted to describing the view of nature’s moral order that modern thinkers dismantled and replaced with subjective human feelings.

The Way Things Were

Before 1500, people saw nature as a unity containing different kinds of things, living and nonliving, plants and animals of different shapes and colors. Each individual thing is an organic whole, a unity, an identity. And this inner unity—a mystery in itself—reveals itself in its outer manifestations: that is in the total impact of its color, shape, smell, texture, taste, sounds, and for animals, also in their behaviors. This way of experiencing nature is a matter of common sense, which everybody possesses. Such philosophers as Plato and Aristotle, however, asked theoretical questions about our common-sense experience: what is the inner basis of the distinct identities of things? What accounts for their unified, spontaneous, and purposeful activity?

In common sense we perceive unreflectively the unity of the being and activity of living things, but stop at that unexamined perception. Practical necessity demands no more. Plato and Aristotle—each in his own way—designated the inner principle of identity “form.” And they named the power for unified, spontaneous, purposeful action “soul.” Designating the inner principle of identity as “form” assures us that this principle is intelligible or mind-like; for that is the only way to make sense of the perceptible differences among things. Matter alone cannot account for the order and qualities that differentiate one kind of thing from another.

Even though forms are too complex for us to grasp in one act of understanding in the way we can grasp a simple mathematical idea, they must be intelligible, if only to the divine mind. Likewise, the inner power for unified, spontaneous, purposeful action (soul) must be nonmaterial. Note here that the doctrine of forms and souls postulates a likeness between our inner world of mind, will, and life and the inner world of things in nature. To anticipate future posts, the scientific revolution shattered this likeness and drove a wedge between the human reality and nature.

Admittedly, giving the names “form” and “soul” and “nature” and “substance” to the inner principles of things adds nothing to our common-sense understanding of things. For what information does it add to the appearances of things to postulate a hidden cause of those appearances? But it does articulate our confidence that our ordinary perceptions of the distinct identities of things are perceptions of something real in itself, that is, the invisible reality in things that shows itself through the appearances. The appearances of things are revelations of the inner reality of things. They are not deceptive.

The Christian thinkers Augustine of Hippo and Thomas Aquinas took up the concepts pioneered by Plato and Aristotle and incorporated them into the Christian doctrine of creation. The creation as a whole and all creatures within it embody ideas and purposes that find their archetypes in the mind of God. Augustine and Aquinas used such concepts as ideas, forms, souls, and natures to designate and explain our common-sense perception of the inner unity and reality of things and of their inner power for spontaneous, purposeful action. Like the forms and souls of Plato and Aristotle, their Christian adaptations add nothing to our perceptions of the appearances of things. Nevertheless, they assert our confidence that through the appearances our minds make contact with the intelligible inner reality of things.

There is more, however, because the Christian doctrine of creation also assures us that in knowing the forms of things through the appearances, our minds also contact the mind and will of God. Thereby, our ordinary common-sense experience of nature is drawn into the religious and moral sphere. The glory of God and the nature of the good is at least partially revealed in the appearances of creatures.

Observations and Anticipations

1. Hence, we can see clearly why people living before scientific revolution of the seventeenth century would find the statement “I am a woman trapped in a man’s body” (Truman, p. 19) not only false but incomprehensible. Laughable even. For if a human being appears to the senses as male, we can be certain that his inner reality (or form) is male. Forms do not deceive us by appearing in bodies as something they are not in themselves.

2. The traditional Christian doctrine of creation adds another dimension. Because the forms that give each creature its identity find their archetypes in God’s mind and embody God’s good will, they demand our respect. They are revelations of God’s wisdom and goodness. It would have struck a person living 400 years ago as impious, ungrateful, and irrational to reject one’s sex.

3. Before the modern era, common sense, the doctrine of forms, and the Christian doctrine of creation together provided a strong foundation for the conviction that a moral law is woven into the fabric of creation. Some activities are good and some are bad. Some are right and some are wrong. And these moral distinctions can be discerned by reason and common sense. For Augustine and Thomas Aquinas or any of their contemporaries, it would have seemed as irrational as it is wrong for a human being to live as an animal or a male to live as a female or a female to live as a male.

Next Time: We will see how the architects of the scientific revolution—Galileo, Bacon, Descartes, et al.—destroyed confidence in the reality of forms and souls and replaced them with atoms, space, and machines. The appearances no longer reveal the reality of things. Creation is emptied of spiritual reality, meaning, purpose, moral law, and beauty, all of which are transferred to the inner subjective world of the human mind.

*Subsequently published in revised form as Ron Highfield, The Choice: Should the Church Affirm LGBTQ+ Identities and Ways of Living (Keledei Publications, 2024).

**If you want to think about the true nature of the biological distinction between the sexes, I recommend reading Tomas Bogardus, The Nature of the Sexes: Why Biology Matters (Routledge, 2026). Bogardus is a philosopher colleague of mine. I will say more about this book in a later post.