“Religion is the opium of the people.”

“Religion is excellent stuff for keeping common people quiet. Religion is what keeps the poor from murdering the rich.”

“Persecution is not an original feature in any religion but it is always the strongly marked feature of all religions est...”

“In reality, there are as many religions as there are individuals.”

“People are never so completely and enthusiastically evil as when they act out of religious conviction.”

“The objection to an aristocracy is that it is a priesthood without a god.”

“Religion is the masterpiece of the art of animal training, for it trains people as to how they shall think.”

“The only differences between a cult and a religion are the numbers of adherents and the degree to which they are margina...”

“I do not know how to teach philosophy without becoming a disturber of established religion.”

“Man suppresses the truth, mixes it with error, and develops the religions of the world.”

“You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human...”

“If religion has given birth to all that is essential in society, it is because the idea of society is the soul of religi...”