Perhaps most of the great discoveries of science have been made by those who are not Christians. But such discoveries could not have been made unless the universe is what the Christian says it is, namely, created and controlled by God. There would be no order in nature and no rationality of relationships to be found anywhere in the universe had not God made them. Therefore the possibility of science itself presupposes the truth of the Christian concept of God. When, then, the non-Christian scientist discovers truth, this is not because of, but in spite of, his own theory of being and of knowledge.
– Cornelius Van Til, The Intellectual Challenge of the Gospel p.9