“Work hard, play hard.” Here is a line to live by: Both to perform your responsibilities, and to enjoy life’s blessings, with all your energy. You are most alive when you are most exhausted. The less energy you spend, the less there is to tell you from a houseplant or a paving stone. Now this says nothing about what, exactly, our responsibilities are, or what life’s blessings are. On those things people differ: some are wrong and some are right. But there is no sense in doing things by halves. “What thou doest, do quickly” was said to a man who was farther wrong than most. The fading, flickering mind is more dangerous than the raging fire of zeal.