I wont be wading in early, Teddy said. Too many friends. But I can tell you this, Barack. The power to inspire is rare. Moments like this are rare. You think you may not be ready, that youll do it at a more convenient time. But you dont choose the time. The time chooses you. Either you seize what may turn out to be the only chance you have, or you decide youre willing to live with the knowledge that the chance has passed you by.

A Promised Land by Barack Obama