What quotation do you use the most?

A friend sent me a dozen sports quotes with the condescending remark, “You like this stuff.” I scanned the quotes, but none of them rose to the remark from long-ago Cleveland Cavaliers coach Bill Musselman. Asked how his beleaguered club would fare against the mighty Boston Celtics in a game scheduled for the next week. Musselman said, “We’ll jump off that bridge when we come to it.”

I guess I use that quote about as much as any other (except possibly, "When in Rome, do as the Romanians do").

What quote (or colorful phrase) do you often find yourself leaning on (like a drunk to a lampost)?