“I’m an atheist in the sense that I do not believe in God, I do not believe in the afterlife. I believe that the soul is our brain. It’s impossible to scientifically prove either that God exists, or that God does not exist. The idea of God does not convince me. I prefer to believe that there is matter and that matter has the properties we observe. … When I pass away, if I meet God, I will tell him I was wrong.”

As quoted in Calgary Sun (10 July 2007)

Nausea (1938)

2000s, There Is No God (2005)

Source: As I Lay Dying

Response after being asked "Do you regard yourself as a religious person?", in an interview with Religion & Ethics Newsweekly http://www.pbs.org/wnet/religionandethics/2011/02/18/february-18-2011-ernest-gaines/8169/, February 18, 2011

The Third Notebook: Part One
No Longer Human

Responding to audience questions during a speech in Detroit (1898); as recounted in Living My Life (1931), p. 207; quoted by Annie Laurie Gaylor in Women Without Superstition, p. 382
Context: Ladies and gentlemen, I came here to avoid as much as possible treading on your corns. I had intended to deal only with the basic issue of economics that dictates our lives from the cradle to the grave, regardless of our religion or moral beliefs. I see now that it was a mistake. If one enters a battle, he cannot be squeamish about a few corns. Here, then, are my answers: I do not believe in God, because I believe in man. Whatever his mistakes, man has for thousands of years past been working to undo the botched job your God has made.
As to killing rulers, it depends entirely on the position of the ruler. If it is the Russian Czar, I most certainly believe in dispatching him to where he belongs. If the ruler is as ineffectual as an American President, it is hardly worth the effort. There are, however, some potentates I would kill by any and all means at my disposal. They are Ignorance, Superstition, and Bigotry — the most sinister and tyrannical rulers on earth. As for the gentleman who asked if free love would not build more houses of prostitution, my answer is: They will all be empty if the men of the future look like him.

Source: Culture series, Inversions (1998), Chapter 7 (p. 126)

As quoted in Against the Faith (1985) by Jim Herrick, p. 75
Variant translation: It is very important not to mistake hemlock for parsley, but to believe or not believe in God is not important at all.