The most fertile source of insight is hindsight.

The writing in mathematics text is not only laconic to a fault; it is cold, monotonous, dry, dull, and even ungrammatical... The books are not only printed by machines; they are written by machines.

Statistics: the mathematical theory of ignorance.

Universities hire professors the way some men choose wives - they want the ones the others will admire.

A elegantly executed proof is a poem in all but the form in which it is written.

Actually, most mathematics courses do not teach reasoning of any kind. Students are so baffled by the material that they are obliged to memorize in order to pass examinations.

Mathematicians create by acts of insights and intuition. Logic then sanctions the conquests of intuition.

Psychologically, the teaching of abstractions first is wrong. Indeed, a thorough understanding of the concrete must precede the abstract.

There is no rigorous definition of rigor.

A proof tells us where to concentrate our doubts.

In brief, the whole world is the totality of mathematically expressible motions of objects in space and time, and the entire universe is a great, harmonious, and mathematically designed machine.

I think the influence of books is neither direct and more predictable. Books themselves are too unruly, and so are readers.

It never ceases to amaze me how much people talk about relationships, think about them, read about them, ask about them - even get in them without a clue how to move them forward.

love is the only fire that is hot enough to melt the iron obstinacy of a creatures will

I can't remember any dreams in my life. There's so much strange in real life that it often seems like a dream.

To mark the hundredth anniversary of the Titanic, the Republicans have nominated Mitt Romney.

Faith is a kind of winged intellect. The great workmen of history have been men who believed like giants.

My head aches every time Donald Trump successfully dodges a question with this reoccurring tactic. What's his worst offense? I don't know. How long is this article?

I always feel a bit awkward when it's time to talk about the K.I.N.D. fund. I don't want to be one of those guys on a telephone begging you to contribute.

Love came when you weren't looking, except in the case of millions who found mates on Match.com, but, hey. It sounded good.

I feel somewhat responsible for the Borders Books bankruptcy.