“The most detestable wickedness, the most horrid cruelties, and the greatest miseries, that have afflicted the human race have had their origin in this thing called revelation, or revealed religion....”

“Let them call me a rebel and welcome. I feel no concern from it. But should I suffer the misery of devils, were I to make a whore of my soul.”

“It is error only, and not truth, that shrinks from inquiry.”

“Nothing, they say is more certain than death, and nothing more uncertain than the time of dying”

“The mind once enlightened cannot again become dark.”

“He who dares not offend cannot be honest.”

“War is what happens when language fails.”

“Never think that war, no matter how necessary, nor how justified, is not a crime.”

“The world is full enough of hurts and mischances without wars to multiply them.”