"This only is certain, that there is nothing certain; and nothing more miserable and yet more arrogant than man."

"No mortal man, moreover is wise at all moments."

"In comparing various authors with one another, I have discovered that some of the gravest and latest writers have transcribed, word for word, from former works, without making acknowledgment."

"Why is it that we entertain the belief that for every purpose odd numbers are the most effectual?"

"The best plan is to profit by the folly of others."

"The only certainty is that nothing is certain."

"If voters don't have a stomach for me, they can get one of those blow-dried guys."

"That's one small step for a man, one giant leap for mankind."

"Experience shows that success is due less to ability that to zeal. The winner is he who gives himself to his work, body and soul."

"WITTICISM, n. A sharp and clever remark, usually quoted, and seldom noted; what the Philistine is pleased to call a 'joke.'"

"Some day my boat will come in, and with my luck I'll be at the airport."

"We're thinking about upgrading from SunOS 4.1.1 to SunOS 3.5."