“There should be philosophy and knowledge for the elect, religion and sentimentality for the masses”

“Philosophy begins where religion ends, just as by analogy chemistry begins where alchemy runs out, and astronomy takes the place of astrology.”

“I am not even an atheist so much as an antitheist; I not only maintain that all religions are versions of the same untruth, but I hold that the influence of churches and the effect of religious belief, is positively harmful. Reviewing the false claims of religion I do not wish, as some sentimental materialists affect to wish, that they were true. I do not envy believers their faith. I am relieved to think that the whole story is a sinister fairy tale; life would be miserable if what the faithful affirmed was actually true.... There may be people who wish to live their lives under cradle-to-grave divine supervision, a permanent surveillance and monitoring. But I cannot imagine anything more horrible or grotesque.”

“mass indoctrination of uneducated young men with such ideas is in itself a lethal danger to society and to international order.”

“One must state it plainly. Religion comes from the period of human prehistory where nobody—not even the mighty Democritus who concluded that all matter was made from atoms—had the smallest idea what was going on. It comes from the bawling and fearful infancy of our species, and is a babyish attempt to meet our inescapable demand for knowledge (as well as for comfort, reassurance and other infantile needs). Today the least educated of my children knows much more about the natural order than any of the founders of religion, and one would like to think—though the connection is not a fully demonstrable one—that this is why they seem so uninterested in sending fellow humans to hell.”

“Human decency is not derived from religion. It precedes it.”

“Nothing proves the man-made character of religion as obviously as the sick mind that designed hell.”