Bertrand Russell (b. 1872, d. 1970) was a British logician, philosopher, essayist, social critic, and one of them thar non-believers. In atheist circles, he is known for his criticism and disdain of the religious concept of faith via his china teapot “hypothesis”. His writings played an important role in my rejection of religion.

“I do not pretend to be able to prove that there is no God. I equally cannot prove that Satan is a fiction. The Christian god may exist; so may the gods of Olympus, or of ancient Egypt, or of Babylon. But no one of these hypotheses is more probable than any other: they lie outside the region of even probable knowledge, and therefore there is no reason to consider any of them.”
― Bertrand Russell, Why I Am Not a Christian and Other Essays on Religion and Related Subjects