Part 2: Rationalist Proofs of God

Last week I talked about the problems with Empiricism. Since we are going to be skeptical of Empirical evidence  and the scientific method altogether, we need to look at purely rational proofs for Gods existence. Next week we can look at empirical arguments, with a skeptical eye. I don’t think we need empirical arguments to prove God though. Below are what I believe to be the best evidence for the Jewish, Muslim and Christian God.


C.S. Lewis uses the argument from desire in “Mere Christianity”. He says,

If I find in myself a desire which no experience in this world can satisfy, the most probable explanation is that I was made for another world. If none of my earthly pleasures satisfy it, that does not prove that the universe is a fraud. Probably earthly pleasures were never meant to satisfy it, but only to arouse it, to suggest the real thing.

This desire Dr. Peter Kreeft describes as a “desire for the perfection of all the good transcendent things in the world”. The perfection of Goodness, Beauty, Justice etc. We all can look at the world and see the imperfection of the world. We can also see the potential for perfection, even using the word imperfection presupposes a perfect world that we have fallen short of. The idea of perfection cannot exist unless perfection exists. Nothing in our world is perfect except for (possibly only) one thing, Math.

Math & Logic

The second proof for God is math. We have a system that we did not invent, but discovered. A system that seems to transcend space and time. A system that we continually discover deeper and deeper truths in, and continue to use this system to discover deeper and deeper truths about our universe. A system that screams of the infinite. This to me is the most conclusive proof for God that exists. So where did it come from? Some scientists think math exists necessarily, as soon as you have any physical thing. That really doesn’t explain the complexity of math. Of course it appears to us that math is necessary, but why would our universe need to be sensible?

I’m going to include logic in this since I think they are related. Why shouldn’t our universe just be chaos?  Why were we given this perfect system, math and logic, as a vehicle to discover the mysteries of the universe? Without math and logic we would be impotent. 1+1=2 is the most beautiful thing in the world. If we have a problem that has one, clear, distinct and definite answer is perfect and that is beautiful.


We usually see beauty as completely subjective. I don’t want to argue that beauty is objective, what I want to say is similar to logic and desire, why does beauty exist? Or maybe why do we have perception all sense of beauty? You can’t say it is necessary, but you can say it is universal. We all can recognize beauty even if we disagree on what is beautiful, we all have a sense of beauty. Why? Where did it come from and why is it universal to every human being? A naturalist Atheists would have to say it is just neurons firing in our brain or maybe something in science we haven’t discovered yet. However, neurons firing in the brain seems to dismiss the tears that a great movie or book or piece of music can bring us to. The latter answer makes you an agnostic since the agnostics answer is always to say, “well I don’t know yet.”

  • Creativity

An additional thought that is important is creativity. This is a bit of an add-on to the argument from beauty but it will become important. Our ability to be creative and the fact that something created something (even if only my ability to think, see Part 1: Empiricism) proves that there is a creator. For I am sure I exist, even if only in my ability to have thoughts, therefore something had to cause me to exist. Creativity is a fundamental characteristic of God, which will come into play when we need to prove God is good.


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