Most naturalists prefer a more subtle approach. Instead of openly insulting Christianity, they patronize it, paying it the kind of compliments one pays to children and the simple-minded. Or they use "as-we-now-know" statements: "As we now know, there is no life after death." These are often introduced by "it-was-once-thought" statements: "It was once thought that moral laws were given to us by a God or gods, but as we now know, mankind gives moral laws to himself." Whenever a teacher makes an "as-we-now-know" statement, ask "Who do you mean by 'we,' and how do we 'know'?" If you aren't yet ready for public debate, ask the questions inwardly. If you do ask them aloud, be respectful. Your goal isn't to show that your teacher is wrong but merely that he isn't taking seriously the legitimate arguments on the other side.
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To get this point across, ask your teacher to read the following words of Harvard paleontologist Richard Lewontin. Like every naturalist, Lewontin believes that the material world of nature is all there is, but he also confesses to something many of his fellow naturalists would rather deny. The confession is that they all believe in naturalism in spite of the evidence, not because of it. For example, even though the evidence strongly suggests that living things are the result of intelligent design, naturalists are desperate to prove they can't be.' Most of us would call the urge to ignore evidence "prejudice." Strangely, Lewontin calls it "taking the side of science"! See for yourself:
We take the side of science in spite of the patent absurdity of some of its constructs, ... in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitment, a commitment to materialism. It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world, but, on the contrary, that we are forced by our a priori adherence to material causes to create an apparatus of investigation and a set of concepts that produce material explanations, no matter how counterintuitive, no matter how mystifying to the uninitiated. Moreover, that materialism is absolute, for we cannot allow a Divine Foot in the door.This amazing confession is important because it shows that what naturalists call "science" isn't really science—at least not if science means following the evidence! Naturalists like to think of themselves as brave defenders of clear reasoning itself is the superstition. It isn't supported by reasoning but by blind hostility to the evidence of God. Pray that your professors will finally get tired of their games. As Blaise Pascal wrote long ago, "it is good to be tired and wearied by the vain search after the true good, that we may stretch out our arms to the Redeemer."
— J. Budziszewski
J. Budziszewski. How to Stay Christian in College (Kindle Locations 417-419). Kindle Edition.