It is easy to tell the story of science as a clean break from religion. Enlightenment replaces superstition, observation replaces faith, reason replaces authority. It sounds tidy, and it flatters modern assumptions. But it misses something more interesting and, honestly, more uncomfortable for that narrative: the idea that the universe is intelligible in the first place is not self-evident. It is a metaphysical claim. And Catholic monotheism is one of the major historical reasons that claim felt reasonable.
In a genuinely pagan world, nature is not just “nature.” It is crowded. Rivers have spirits. Weather has moods. Forests have presences. Disease can be the expression of anger, bargaining, imbalance, or competing invisible agencies. The world is not a single coherent system but a layered negotiation between powers with intentions. A world where you have to pray to multiple gods and spirits to ensure they're onboarded with your presence and goals. In that kind of environment, experimentation is not neutral. It is risky in a different sense, because outcomes are not assumed to be stable. They depend on wills, not just conditions.
That does not mean pre-Christian cultures were incapable of observation or practical knowledge. They clearly were capable. But the thing is, the Greek, Romans, Egyptians... that advocated for a rational universe all started converging towards pantheism (all the universe is GOD and we're part of it) or monotheism (there is only one God, and the universe is rational and governed according to laws) . But the intellectual posture toward nature is different when nature is also a social space filled with agents who might respond to you.
Catholic monotheism introduces a very different assumption: there is one Creator, and creation is not itself divine, not to be worshiped. Nature is not a council of competing wills. It is not morally fragmented at the level of physical causation. It is unified under a single source of order. That does not make nature simple, and it certainly does not make it transparent, but it does make it coherent.
And coherence is a forgotten prerequisite for science. We take it for granted, but the world was not always seen as governed by laws (physical, moral or of any kind), but rather by competing wills of different spirits and gods.
You can only start trusting systematic investigation if you believe that repeated observation will actually converge on something stable. If reality is fundamentally governed by competing intentions, then consistency is not going to happen, it's all about the wills and feelings of the gods. If reality is governed by one rational source, then consistency becomes expected, even if the details remain hidden. IF a system has been put in place, regardless of how we think it was created in the first place, then the system can be studied from within, at least rationalized about. We may never know transcendental truths concerning the soul, but sure we can know the universe we live in.
This is where the Catholic intellectual tradition matters more than we realize The claim is not that God replaces explanation. It is that God does not compete with secondary causes. The world is allowed to be genuinely causal. Fire burns because of fire. Bodies fall because of gravity. Seeds grow according to their nature. These are not disguised divine mood swings. They are stable patterns in creation.
From that perspective, the famous rise of early scientific thought in medieval and early modern Europe is not an accident floating above Christian civilization. It is deeply tied to the assumption that nature is not chaotic at the level of meaning. Even when nature is violent or mysterious, it is not arbitrary.
And this changes how you behave toward the world. You stop trying to negotiate with every phenomenon as if it has a hidden personality. You start asking what it consistently does. You start isolating variables. You start expecting that the same conditions produce the same results not because you have appeased the right spirit, but because reality is structured in a way that is intelligible under investigation. None of this means Catholicism “invented” science in a total sense, but rather set the framework in place for Science to flourish as much as it did. Yes, using Greek philosophy and worldviews, Indian numbers and other techniques from the rest of the world. Science as a method is a long, multi-civilizational development. But Catholic monotheism did something unique: it helped remove a particular kind of metaphysical anxiety about nature. It made the world less like a crowded negotiation of wills and more like a unified order that could be patiently studied.