Life is pleasant. Death is peaceful. It's the transition that's troublesome.

If you have talent, you will receive some measure of success - but only if you persist.

Naturally, since [the Sumerians] didn't know what caused the flood anymore than we do, they blamed the gods. (That's the advantage of religion. You're never short an explanation for anything.)

The human mind works at low efficiency. Twenty percent is the figure usually given. When, momentarily, there is a flash of greater power, it is termed a hunch, or insight, or intuition.

A scientist is as weak and human as any man, but the pursuit of science may ennoble him even against his will.

Night will always be a time of fear and insecurity, and the heart will sink with the sun.

Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not.