Our past is but a former now, our future a potential one. - Gary W. Keller

the majority of what you want will come from the minority of what you do.

Saying yes to everyone is the same as saying yes to nothing. Each additional obligation chips away at your effectiveness at everything you try.

Passion for something leads to disproportionate time practicing or working at it. That time spent eventually translates to skill, and when skill improves, results improve. Better results generally lead to more enjoyment, and more passion and more time is invested. It can be a virtuous cycle all the way to extraordinary results.