Topology is precisely the mathematical discipline that allows the passage from local to global.

I believe that proving is not a natural activity for mathematicians.

If one must choose between rigour and meaning, I shall unhesitatingly choose the latter.

Quantum mechanics, with its leap into statistics, has been a mere palliative for our ignorance

The importance of the "New Mathematics" lies mainly in the fact that it has taught us the difference between the disc and the circle.

At a time when so many scholars in the world are calculating, is it not desirable that some, who can, dream ?

The world of ideas is not revealed to us in one stroke; we must both permanently and unceasingly recreate it in our consciousness.

Algebra is rich in structure but weak in meaning.

God is always creating something new, He wants to give us new information and reveal to us new secrets in order to exalt us over this world

A man of great memory without learning hath a rock and a spindle and no staff to spin.

It is better to be divided by truth than to be united in error. It is better to speak the truth that hurts and then heals, than falsehood that comforts and then kills.

Frederick liked to say that three men behind the enemy were worth fifty in front of him.

Probably the simplest hypothesis... is that there may be a slow process of annihilation of matter.

I'm interested in questions my son asks me, like, "Why do animals fight? Why do you have to leave us to go on the road?" Everything he asks gets me thinking.

How are you coming into the effect? How are you getting out?

Customers want new functionality, but they don't want the traditional complexity that has marred products in the past.

Performance has to be mainstream art. This is what I'm fighting for.

Those we dislike can do nothing to please us.