No man has any natural authority over his fellow men.

Wise men speak because they have something to say; Fools because they have to say something.

I am a lover of truth, a worshipper of freedom, a celebrant at the altar of language and purity and tolerance.

Admiration is the daughter of ignorance.

Nothing is more intolerable than to have to admit to yourself your own errors.

I hear and I forget. I see and I remember. I do and I understand.

Thought can be so seductive and hypnotic that it absorbs your attention totally, so you become your thoughts.

It was a melancholy secret that reality can arouse desires but never satisfy them.

Man is the only creature who refuses to be what he is.

We thought that we had the answers, it was the questions we had wrong.

It takes a lot of courage to show your dreams to someone else.

Nobody has the power to take two steps together; you can take only one step at a time.

Fine clothes may disguise, but silly words will disclose a fool.

What's done can't be undone.

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

We are all born ignorant, but one must work hard to remain stupid

In order to change the world, you have to get your head together first

Be curious, not judgmental.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.