" A promise is a direction taken, a self-limitation of choice. As Odo pointed out, if no direction is taken, if one goes nowhere, no change will occur. One's freedom to choose and to change will be unused, exactly as if one were in jail, a jail of one's own building, a maze in which no one way is better than any other. "

― Ursula K. Le Guin , The Dispossessed (Hainish Cycle, #6)