No, no, we are not satisfied, and we will not be satisfied until justice rolls down like waters and righteousness like a mighty stream. – Martin Luther King, Jr.

He who knows that enough is enough will always have enough. – Lao-Tzu

There are three wants which never can be satisfied: that of the rich, who wants something more; that of the sick, who wants something different; and that of the traveler, who says, Anywhere but here. – Ralph Waldo Emerson