In our monogamous part of the world, to marry means to halve one's rights and double one's duties.

The difficulty is to try and teach the multitude that something can be true and untrue at the same time.

Consciousness is the mere surface of our minds, of which, as of the earth, we do not know the inside, but only the crust.

Necessity is the constant scourge of the lower classes, ennui of the higher ones.

Ordinary people merely think how they shall 'spend' their time; a man of talent tries to 'use' it.

Education perverts the mind since we are directly opposing the natural development of our mind by obtaining ideas first and observations last. This is why so few men of learning have such sound common sense as is quite common among the illiterate.

If children were brought into the world by an act of pure reason alone, would the human race continue to exist? Would not a man rather have so much sympathy with the coming generation as to spare it the burden of existence, or at any rate not take it upon himself to impose that burden upon it in cold blood?