No problem can withstand the assault of sustained thinking.

Men who have seen life and death... as an unbroken continuum, the swinging pendulum, have been able to move as freely into death as they walked through life. Socrates went to the grave almost perplexed by his companions' tears.

In every province, the chief occupations, in order of importance, are lovemaking, malicious gossip, and talking nonsense.

Fanaticism is a monster that pretends to be the child of religion

Earth is an insane asylum, to which the other planets deport their lunatics.

If mankind were born tomorrow it would divide into groups; each would scramble to invent their one and only god, and set about butchering each-other.

In all the disputes which have excited Christians against each other, Rome has invariably decided in favor of that opinion which tended most towards the suppression of the human intellect and the annihilation of the reasoning powers.