What good is a reputation not put to good use.

With fame I become more and more stupid, which of course is a very common phenomenon.

The most important human endeavor is the striving for morality in our actions. Our inner balance and even our very existence depend on it. Only morality in our actions can give beauty and dignity to life. To make this a living force and bring it to clear consciousness is perhaps the foremost task of education. The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action.

One is born into a herd of buffaloes and must be glad if one is not trampled under foot before one's time.

The ancients knew something, which we seem to have forgotten.

Highly developed spirits often encounter resistance from mediocre minds.

[Kepler] had to realize clearly that logical-mathematical theoretizing, no matter how lucid, could not guarantee truth by itself; that the most beautiful logical theory means nothing in natural science without comparison with the exactest experience. Without this philosophic attitude, his work would not have been possible.