There you are at the pearly gates and you look back on your life and you could, in principle, add up all the pleasures, add up all the pains, subtract the pains from the pleasures and ask yourself, "How good a life did I have?

当你站在天堂门口回顾一生时,你可以，在原则上，累加所有快乐，累加所有痛苦，从快乐中减去痛苦然后问自己，“我的一生到底有多好？

耶鲁公开课 - 死亡课程节选