My Bronx-raised father's favorite Yogi Berra line: Berra was rooming with third baseman Bobby Brown, who was going through medical school at the time. (Fascinating man. Look him up.) One night, Brown was reading a medical textbook in bed and Berra was reading a comic book. Berra leaned over to Brown and said, "I hope yours is as good as mine!" (Different versions exist.)
Interestingly, neither is a Yogi-ism. So, alas, here is one: "It ain't over 'till it's over." And it is.