Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand.

It may be possible to fight intolerance, stupidity, and fanaticism seperately, but when they come together there is no hope.

When I have one week to solve a seemingly impossible problem, I spend six days defining the problem. Then, the solution becomes obvious.

Outer changes always begin with an inner change of attitude.

In matters of truth and justice, there is no difference between large and small problems, for issues concerning the treatment of people are all the same.

The special theory of relativity owes its origins to Maxwell's equations of the electromagnetic field.

If at first the idea is not absurd, then there is no hope for it.