"How things look on the outside of us depends on how things are on the inside of us"

"Art does not imitate life. Art is much more powerful than that. Art brings life back. And it does it by exposing the secrets we all carry inside."

"The absence of love is the most abject pain."

"Only when the last tree has been cut down Only when the last river has been poisoned Only when the last fish has been caught Only then will you find that money cannot be eaten."

"Life is good for only two things, discovering mathematics and teaching mathematics."

"If a cluttered desk signs a cluttered mind, Of what, then, is an empty desk a sign?"

"'I am,' I said To no one there, And no one heard at all."

"The superfluous is very necessary."

"A wise man is he who does not grieve for the thing which he has not, but rejoices for those which he has."

"The more you pay for a rubber flower, the harder it is to say it's not real."

"Most men pursue pleasure with such breathless haste that they hurry past it."

"Wisdom alone is true ambition's aim Wisdom the source of virtue, and of fame, Obtained with labor, for mankind employed, And then, when most you share it, best enjoyed."