Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.

Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.

A precedent embalms a principle.

Each problem that I solved became a rule which served afterwards to solve other problems.

One just needs a little alertness to see and find out: Life is really a great cosmic laughter.

It is always advisable to perceive clearly our ignorance.

Tis very certain the desire of life prolongs it.

If you don't know where you're from, you'll have a hard time saying where you're going.

Experience is merely the name men gave to their mistakes.

The first method for estimating the intelligence of a ruler is to look at the men he has around him.

Good advice is always certain to be ignored, but that's no reason not to give it.

One new feature or fresh take can change everything.

Learned we may be with another man's learning: we can only be wise with wisdom of our own.

A man may imagine things that are false, but he can only understand things that are true.

A mistake is always forgivable, rarely excusable and always unacceptable.

The one you buy will be the only one that doesn't work.

Your inner world has its own taste, has its own fragrance, has its own light. And it is utterly silent.

I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.

Not everything that can be counted counts, and not everything that counts can be counted.

Simplicity is the ultimate sophistication.

You don't become what you want, you become what you believe