Just like a turtle, we only make progress if we stick our neck out.

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

Behavior which appears superficially correct but is intrinsically corrupt always irritates those who see below the surface.

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.

Just like a turtle, we only make progress if we stick our neck out.

Every vital organization owes its birth and life to an exciting and daring idea.

Science emerges from the other progressive activities of man to the extent that new concepts arise from experiments and observations, and that the new concepts in turn lead to further experiments and observations.