Ebby Calvin LaLoosh (Tim Robbins): "A good friend of mine used to say, 'This is a very simple game. You throw the ball, you catch the ball, you hit the ball. Sometimes you win, sometimes you lose, sometimes it rains.' Think about that for a while." - Bull Durham
Bull Durham, Crash Davis's "I believe..." speech. One of my favorite scenes of all time. Closely followed by the one where they do it on the table.