I suppose one of my favorites is: "No one on their deathbed ever said 'if only I had spent more time in the office'".
A few others that are high on my list: - "Who is John Galt?" - "What we got here is failure to communicate." - "It's 106 miles to Chicago, we got a full tank of gas, half a pack of cigarettes, it's dark... and we're wearing sunglasses. "Hit it!", - "Go ahead, make my day." - "Government's view of the economy could be summed up in a few short phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it."