"How much fame, money, and power does a woman have to achieve on her own before you can punch her in the face?"

"You see things, and you say 'Why?' But I dream things that never were, and say 'Why not?"

"Sanity is a madness put to good use."

"When I was fourteen, my father was so ignorant I could hardly stand to have him around. When I got to be twenty-one, I was astonished at how much he had learned in seven years."

"Man is the measure of all things."

"Friendship is a very taxing and arduous form of leisure activity."

"Thank God men cannot as yet fly and lay waste the sky as well as the earth!"

"Necessity makes even the timid brave."

"And so, my fellow Americans, ask not what your country can do for you -- ask what you can do for your country."

"All that is really necessary for survival of the fittest, it seems, is an interest in life, good, bad, or peculiar."