I myself should also be dead already, but I am still here.

Betterment of conditions the world over is not essentially dependent on scientific knowledge but on the fulfillment of human traditions and ideals.

Many of the things you can count, don't count. Many of the things you can't count, really count.

The only thing that you absolutely have to know, is the location of the library.

You have to learn the rules of the game. And then you have to play better than anyone else.

Knowledge exists in two forms - lifeless, stored in books, and alive, in the consciousness of men. The second form of existence is after all the essential one; the first, indispensable as it may be, occupies only an inferior position.

E=mc2. Energy equals mass times the speed of light squared