While it is true that scientific results are entirely independent from religious and moral considerations, those individuals to whom we owe the great creative achievements of science were all of them imbued with the truly religious conviction that this universe of ours is something perfect and susceptible to the rational striving for knowledge. If this conviction had not been a strongly emotional one and if those searching for knowledge had not been inspired by Spinoza's Amor Dei Intellectualis, they would hardly have been capable of that untiring devotion which alone enables man to attain his greatest achievements.

In the the rationality of the Universe.

Many religious believers mischaracterize naturalists as people without faith, but that is absurd. Eve^ryone must believe in something—it's part of human nature. I I have no problem acknowledging that 1 have beliefs, though they differ from more traditional kinds of faith. Naturalists must believe, first of all, that the work is understandable and that it knowledge of the world can be obtained through observation, experimentation, and verification. Most scientists don't think much about this point. They simply assume that it is true and get to work. But this assumption has relevance to people other than philosophers. When intelligent design creationists, for example, speak of replacing methodological naturalism in science classes with theistic naturalism, they are threatening to remove this assumption from the shared presuppositions of public discourse.

Scientists have faith that the world can be understood rationally.