"A man's worth is no greater than his ambitions."

"Is any man afraid of change? Why what can take place without change? What then is more pleasing or more suitable to the universal nature?"

"I have often wondered how it is that every man loves himself more than all the rest of men, but yet sets less value on his own opinions of himself than on the opinions of others."

"A humble soul understands that a single moment of clarity can change a lifetime."

"Computers make it easier to do a lot of things, but most of the things they make it easier to do don't need to be done."

"Act as if what you do makes a difference. It does."

"Not until we are lost do we begin to understand ourselves."

"The scientific observer of Nature is a kind of mystic seeker in the act of prayer."