Yogi Berra had some good ones:
"You can observe a lot just by watching."
"He must have made that before he died." -- Referring to a Steve McQueen movie.
"You've got to be very careful if you don't know where you're going, because you might not get there."
"I knew I was going to take the wrong train, so I left early."
"If you can't imitate him, don't copy him."
"You better cut the pizza in four pieces because I'm not hungry enough to eat six."
"Baseball is 90% mental -- the other half is physical."
"It was impossible to get a conversation going; everybody was talking too much."
"A nickel isn't worth a dime today."
"Nobody goes there anymore; it's too crowded."
"It gets late early out there."
"If you come to a fork in the road, take it."
"You give 100 percent in the first half of the game, and if that isn't enough in the second half you give what's left."
"90% of the putts that are short don't go in."
"Thanks, you don't look so hot yourself." -- After being told he looked cool.
"I always thought that record would stand until it was broken."
"If the fans don't come out to the ball park, you can't stop them."
"It's never happened in the World Series competition, and it still hasn't."
"It ain't the heat; it's the humility."
"The towels were so thick there I could hardly close my suitcase."
"You should always go to other people's funerals; otherwise, they won't come to yours."
"I didn't really say everything I said."
"I don't know (if they were men or women fans running naked across the field). They had bags over their heads."
"The future ain't what it used to be."