In Hamburg we played for 8 hours a day! John Lennon, regarding experience in honing talents

The paradox of endurance sports is that an athlete can never work as hard as he wants, because if he pushes himself too far, his hematocrit will fall.

Hard work is a prison sentence only if it does not have meaning.

Hard work is a prison sentence only if it does not have meaning. Once it does, it becomes the kind of thing that makes you grab your wife around the waist and dance a jig. (150)

...If you work hard enough and assert yourself, and use your mind and imagination, you can shape the world to your desires. (151)

It's very hard to find someone who's successful and dislikes what they do.