Integers are the fountainhead of all mathematics.

Henceforth space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of the two will preserve an independent reality.

Oh, that Einstein, always skipping lectures... I certainly never would have thought he could do it.

The mathematical education of the young physicist [Albert Einstein] was not very solid, which I am in a good position to evaluate since he obtained it from me in Zurich some time ago.

Heaven is angered by my arrogance; my proof [of the four-color theorem] is also defective.

We forget that the simple gesture of putting a book in someone's hands can change a life. I want to remind you that it can. I want to thank you because it did. - 2010 Indies Choice Award

If you keep chasing shooting stars, you'll never feel the warmth of the sun.

Some people will still find a way to create a fire with wet logs.

Approbation from Sir Hubert Stanley is praise indeed.

For, verily, great love springs from great knowledge of the beloved object, and if you little know it, you will be able to love it only little or not at all.

Cynicism is something that is part of the media production of a certain type of subjectivity or consciousness that is passive and disempowered, cynical, fatalistic, pessimistic.

I have touched more men that I can count. Some with my lips, more with my axe.

There are places on a man's head that are as hard as a rock. Your head's actually stronger than your body. And you don't have too many instruments up there workin'.

If there is a reason to believe in God, it would be the Havana Leaf.

Always be kind in your heart, spirit and mind.