"Successful people are very lucky. Just ask any failure."

"I almost think it is the ultimate destiny of science to exterminate the human race."

"True friendship is seen through the heart not through the eyes."

"Lust is the craving for salt of a person who is dying of thirst."

"It is better to be a beggar than ignorant; for a beggar only wants money, but an ignorant person wants humanity."

"You are only as wise as others perceive you to be."

"He is ill clothed that is bare of virtue."

"Give death a better name or die trying."

"Perfection is not attainable, but if we chase perfection, we can catch excellence."

"Whereas in art nothing worth doing can be done without genius, in science even a very moderate capacity can contribute to a supreme achievement."

"The poor complain that they are governed badly. The rich complain that they are governed at all."

"When one door of happiness closes another opens; but we often look so long at the closed one that we do not see the one which has opened for us."