One Must Be Able To Say At

The Art Of Doing Mathematics Consists In Finding That Special Case Which Contains All The Germs Of Generality.

As Long As A Branch Of Science Offers An Abundance Of Problems, So Long It Is Alive; A Lack Of Problems Foreshadows Extinction Or The Cessation Of Independent Development.

The Infinite! No Other Question Has Ever Moved So Profoundly The Spirit Of Man.

Physics Is Much Too Hard For Physicists.

One Hears A Lot Of Talk About The Hostility Between Scientists And Engineers. I Don't Believe In Any Such Thing. In Fact I Am Quite Certain It Is Untrue... There Cannot Possibly Be Anything In It Because Neither Side Has Anything To Do With The Other.