Amy Ruth Tan (born February 19, 1952) is an American author known for The Joy Luck Club, which was adapted into The Joy Luck Club in 1993 by director Wayne Wang.
You may find more from Amy Tan on Wikiquote
Far better to think historically, to remember the lessons of the past. Thus, far better to conceive of power as consisting in part of the knowledge of when not to use all the power you have. Far better to be one who knows that if you reserve the power not to use all your power, you will lead others far more successfully and well.