I have never, in all my life, not for one moment, been tempted toward religion of any kind. The fact is I feel no spiritual void. I have my philosophy of life, which does not include any aspect of the supernatural.
I Asimov: A Memoir (chapter 5), p. 13
I am an atheist, out and out. It took me a long time to say it … Emotionally, I am an atheist. I don’t have the evidence to prove that God doesn’t exist, but I so strongly suspect he doesn’t that I don’t want to waste my time.
Free Inquiry, Spring 1982
The very concept of sin comes from the Bible. Christianity offers to solve a problem of its own making! Would you be thankful to a person who cut you with a knife in order to sell you a bandage?
attributed to
No vision of God and heaven ever experienced by the most exalted prophet can, in my opinion, match the vision of the universe as seen by Newton or Einstein.
as quoted in Huberman, The Quotable Atheist, p. 17