There are four varieties in society – the lovers, the ambitious, observers, and fools. The fools are the happiest.

I've met many thinkers and many cats, but the wisdom of cats is infinitely superior.

Amid this vast and overwhelming space and in these boundless solar archipelagoes, how small is our own sphere, and the earth, what a grain of sand!

We study ourselves three weeks, we love each other three months, we squabble three years, we tolerate each other thirty years, and then the children start all over again.

There are four varieties in society — the lovers, the ambitious, observers, and fools. The fools are the happiest.

His tongue is by turns a sponge, a brush, a comb. He cleans himself, he smooths himself, he knows what is proper.

There are four types of men in the world: lovers, opportunists, lookers-on, and imbeciles. The happiest are the imbeciles.

The production of a work of art is determined by the material and intellectual climate in which a man lives and dies.

A fixed idea is like the iron rod which sculptors put in their statues. It impales and sustains.

After the collection of facts, the search for causes.