I found these Yogi quotes quite humorous also so I thought I'd share:
foxsports.com wrote:"It ain't over 'til it's over."
"Never answer an anonymous letter."
"I usually take a two-hour nap from 1 to 4."
"It's deja vu all over again."
"When you come to a fork in the road ... take it."
"I didn't really say everything I said."
On the 1969 N.Y. Mets: "Overwhelming underdogs."
When asked what time it was ... "You mean now?"
"I want to thank you for making this day necessary." (On Yogi Berra day in St. Louis in 1947)
"We made too many wrong mistakes." (On why the Yankees lost the 1960 World Series to Pittsburgh)
"You can observe a lot by watching."
"The future ain't what it used to be."
"It gets late early out here."
"If the world were perfect, it wouldn't be."
"If the people don't want to come out to the ballpark, nobody's going to stop them."