Each honest calling, each walk of life, has its own elite, its own aristocracy based on excellence of performance. . . . There will always be the false snobbery which tries to place one vocation above another. You will become a member of the aristocracy in the American sense only if your accomplishments and integrity earn this appellation.

Some of mankind's most terrible misdeeds have been committed under the spell of certain magic words or phrases.

Science is a dynamic undertaking directed to lowering the degree of the empiricism involved in solving problems; or, if you prefer, science is a process of fabricating a web of interconnected concepts and conceptual schemes arising from experiments and observations and fruitful of further experiments and observations.

Education is what is left after all that has been learnt is forgotten.

He who enters a university walks on hallowed ground.

Even the development of the steam engine owed but little to the advancement of science.

The dignity of man is vindicated as much by the thinker and poet as by the statesman and soldier.