Intellectual growth should commence at birth and cease only at death.

If the rabble continues to occupy itself with you, then simply don't read that hogwash, but rather leave it for the reptile from whom it has been fabricated.

But without deeper reflection one knows from daily life that one exists for other people--first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy.

I don't teach my students, I provide the circumstances in which they can learn.

Our lives will be measured by what we do for others

He who can no longer pause to wonder and stand rapt in awe, is as good as dead; his eyes are closed.

The stakes are immense, the task colossal, the time is short. But we may hope - we must hope - that man's own creation, man's own genius, will not destroy him.