Those who have an interest in keeping the machinery of war going will stop at nothing to make public opinion subservient to their murderous ends.

The daily struggle does not arise from a purpose or a program, but from an immediate need.

Innovation is not the product of logical thought, even though the final product is tied to a logical structure.

I believe my theory of relativity to be true. But it will only be proved for certain in 1981, when I am dead.

The last thing to collapse is the surface.

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

Everything you can imagine, nature has already created.