Facts are not science - as the dictionary is not literature.

Half of the modern drugs could well be thrown out of the window, except that the birds might eat them.

Knowledge is a process of piling up facts; wisdom lies in their simplification.

A good teacher must know the rules; a good pupil, the exceptions.

Whenever ideas fail, men invent words.

In the sick room, ten cents' worth of human understanding equals ten dollars' worth of medical science.