THE DEVIL: What is the use of knowing?
DON JUAN: Why, to be able to choose the line of greatest advantage instead of yielding in the direction of the least resistance. Does a ship sail to its destination no better than a log drifts nowhither? The philosopher is Nature’s pilot. And there you have our difference: to be in hell is to drift: to be in heaven is to steer.
George Bernard Shaw [Don Juan in Hell]