“In philanthropy, you have to win only one out of five times, and sometimes less. You have only to achieve breakthrough, to create real traction, and to see things begin to change just one-fifth of the time. If you look at the initiatives you have been involved with and if one out of five attained the very tough goal you had set, while the others did no harm but fell short of that mark, you should be very happy. One out of five can be considered a success because the value of that one can be so great in a world where we do not understand change well, where we do not understand all the factors and forces at play, and in which we aim so high. I would suggest, in our philanthropic work, that we remember that ratio.”