"What a piece of work is a man! how noble in reason! how infinite in faculty! in form and moving how express and admirable! in action how like an angel! in apprehension how like a god!"

"Don't tell people how to do things. Tell them what to do and let them surprise you with their results."

"The really frightening thing about middle age is the knowledge that you'll grow out of it."

"Creationist critics often charge that evolution cannot be tested, and therefore cannot be viewed as a properly scientific subject at all. This claim is rhetorical nonsense."

"But screw your courage to the sticking-place, and we'll not fail."

"There is a law that man should love his neighbor as himself. In a few hundred years it should be as natural to mankind as breathing or the upright gait; but if he does not learn it he must perish."

"Houses are built to live in, not to look on; therefore, let use be preferred before uniformity, except where both may be had."

"You can complain because roses have have thorns, or you can rejoice because thorns have roses."

"I'd give my right arm to be ambidextrous."

"Dolendi modus, timendi non item. (To suffering there is a limit; to fearing, none.)"