History is nothing but a problem of mechanics applied to psychology.

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

History is nothing but a problem of mechanics applied to psychology.

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

Four varieties in society: lovers, the ambitious, observers, and fools. The fools are the happiest.

The search for causes must come after the collection of facts.