I don't need to know everything, I just need to know where to find it, when I need it

Compound interest is the eighth wonder of the world. He who understands it, earns it ... he who doesn't ... pays it.

The leaves and the light are one.

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.

We owe a lot to the Indians, who taught us how to count, without which no worthwhile scientific discovery could have been made.

Everything that the human race has done and thought is concerned with the satisfaction of deeply felt needs and the assuagement of pain. One has to keep this constantly in mind if one wishes to understand spiritual movements and their development. Feeling and longing are the motive force behind all human endeavor and human creation, in however exalted a guise the latter may present themselves to us.

If you do the same thing over and over again you cannot ever expect a different outcome.