The "This is not fair poster" attributes the "Half this game is ninety
percent mental" quote to Danny Ozark. I could swear is was YogiBerra-ese.
I seem to recall Yogi saying something akin to that. Whatever, it's a
good quote nonetheless.
Right up there with other "Yogi-isms": "A nickel isn't worth a dime
today" and "You can observe a lot just by watching."
Of course, then there's Dan Qualye-ese.
One of my favorites: ""What a waste it is to lose one's mind. or not
to have a mind is being very wasteful. how true that is."
But I digress....