“I can't be sure God does not exist… On a scale of seven, where one means I know he exists, and seven I know he doesn't, I call myself a six… That doesn't mean I'm absolutely confident, that I absolutely know, because I don't.”
Dawkins on The Telegraph http://www.telegraph.co.uk/news/religion/9102740/Richard-Dawkins-I-cant-be-sure-God-does-not-exist.html, .
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Richard Dawkins 322
English ethologist, evolutionary biologist and author 1941Related quotes

“He doesn't know what he means, and doesn't know he doesn't know.”
Nor Shall My Sword: Discourses on Pluralism, Compassion and Social Hope (London: Chatto & Windus, 1972) p. 43
Of C. P. Snow

General sources
Context: I am an atheist, out and out. It took me a long time to say it. I've been an atheist for years and years, but somehow I felt it was intellectually unrespectable to say one was an atheist, because it assumed knowledge that one didn't have. Somehow, it was better to say one was a humanist or an agnostic. I finally decided that I'm a creature of emotion as well as of reason. 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) <!-- p. 9 -->

“Now I'm a scientific expert; that means I know nothing about absolutely everything.”
Source: 2001: A Space Odyssey

“I don't know if God exists, but it would be better for His reputation if He didn't. ”