Falsehood has an infinity of combinations, but truth has only one mode of being.

The passions are the voice of the body.

He who pretends to look on death without fear lies. All men are afraid of dying, this is the great law of sentient beings, without which the entire human species would soon be destroyed.

Chemistry... is like the maid occupied with daily civilisation; she is busy with fertilisers, medicines, glass, insecticides ... for she dispenses the recipes.

There are times when I am so unlike myself that I might be taken for someone else of an entirely opposite character.

In the strict sense of the term, a true democracy has never existed, and never will exist.

The world of reality has its limits; the world of imagination is boundless.