He who does not understand the supreme certainty of mathematics is wallowing in confusion.

Learning never exhausts the mind.

Simplicity is the ultimate sophistication.

A beautiful body perishes, but a work of art dies not.

To make a perfume, take some rose water and wash your hands in it, then take a lavender flower and rub it with your palms, and you will achieve the desired effect

Being willing is not enough. We must do.

Learning is the only thing the mind never exhausts, never fears, and never regrets.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works.

Whatever you do in life, if you want to be creative and intelligent, and develop your brain, you must do everything with the awareness that everything, in some way, connects to everything else.

When you put your hand in a flowing stream, you touch the last that has gone before and the first of what is still to come.

It was not well to drive men into final corners

How about you ask me something like, "What do you want more than anything?" and I reply with, "A hellhound in my bed"?

Saying 'I'm sorry' is saying 'I love you' with a wounded heart in one hand and your smothered pride in the other.

I like '50s and '60s American art. I have 85 or 90 Warhols.

I think my stuff's kind of obsolete now, you know? I'm making Model Ts or something, and everybody else is making spaceships.

And we have got to go back - I will tell you what we have got to do. We have got to go back to the small disciplines that really make a difference in defining ourselves as a profession. And we will.

No more tears now; I will think about revenge.

You can't look at the intrinsic value of gold as you can a business. Gold doesn't give you cash flow, and, at the end of the day, cash flow is what is important. Gold doesn't give you dividends.

The poem of the understanding is philosophy.

Without women, we stood in space on one leg only.