The most important question regarding Big Data at almost any company is: How much are your customers really worth?

The other day they asked me about mandatory drug testing. I said I believed in drug testing a long time ago. All through the sixties I tested everything.

The more self-centered and egotistical a guy is, the better ballplayer he's going to be.

The only rule I got is if you slide, get up.

I would change policy, bring back natural grass and nickel beer. Baseball is the belly-button of our society. Straighten out baseball, and you straighten out the rest of the world.

I told [reporters] that I sprinkled marijuana on my organic buckwheat pancakes, and then when I ran my five miles to the ballpark, it made me impervious to the bus fumes. That's when [Baseball Commissioner] Bowie Kuhn took me off his Christmas list.

When cerebral processes enter into sports, you start screwing up. It's like the Constitution, which says separate church and state. You have to separate mind and body.