No fairer destiny could be allotted to any physical theory than that it should of itself point out the way to the introduction of a more comprehensive theory, in which it lives on as a limiting case.

The State is made for Mankind, not mankind for the state

Failure is success in progress

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

The difference between stupidity and genius is that genius has its limits.

In the temple of science are many mansions, and various indeed are they that dwell therein and the motives that have led them thither. Many take to science out of a joyful sense of superior intellectual power; science is their own special sport to which they look for vivid experience and the satisfaction of ambition; many others are to be found in the temple who have offered the products of their brains on this altar for purely utilitarian purposes.

Knowledge is dead; the school, however, serves the living.