"Try not to become a man of success, but rather try to become a man of value."

"He called the patent office 'that worldly cloister where I hatched my most beautiful ideas'."

"It is not that I'm so smart, but I stay with problems longer."

"I want to go when I want. It is tasteless to prolong life artificially. I have done my share, it is time to go. I will do it elegantly."

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