Wandering in a vast forest at night, I have only a faint light to guide me. A stranger appears and says to me: 'My friend, you should blow out your candle in order to find your way more clearly.' This stranger is a theologian.

The following general definition of an animal: a system of different organic molecules that have combined with one another, under the impulsion of a sensation similar to an obtuse and muffled sense of touch given to them by the creator of matter as a whole, until each one of them has found the most suitable position for its shape and comfort.

When we know to read our own hearts, we acquire wisdom of the heartsof others.

All children are essentially criminal.

Philosophy is as far separated from impiety as religion is from fanaticism.

If you disturb the colors of the rainbow, the rainbow is no longer beautiful.

There is only one duty; that is to be happy.