The famous atheist, Richard Dawkins, said in his book The Blind Watchmaker: "Darwin made it possible to be an intellectually fulfilled atheist."
Why did Dawkins say this?
Because Darwinian theory claims that totally new species evolved by random mutation. Thus nature works by chance, according to the Darwinist, and there is no need for God.
Yet Darwinists are having a harder and harder time explaining DNA and so many other evidences of an Intelligent Designer. As Dr. William Demski says in The Design Revolution: "Like compulsive gamblers who are constantly hoping that some big score will cancel their debts, evolutionary biologists live on promissory notes that show no sign of being redeemable."