The world is in greater peril from those who tolerate or encourage evil than from those who actually commit it.

One should not pursue goals that are easily achieved. One must develop an instinct for what one can just barely achieve through one’s greatest efforts.

The strongest force in the universe is Compound Interest.

Not until we dare to regard ourselves as a nation, not until we respect ourselves, can we gain the esteem of others, or rather only then will it come of its own accord

Be kind to people who are different from you.

Things you can get access to, you should never memorize.

I have little patience with scientists who take a board of wood, look for its thinnest part, and drill a great number of holes where drilling is easy.