The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.
（关于最优选择方法论）在餐厅你是点你知道的好吃的还是试试新菜？你会投资制造已经知道好卖的东西，还是尝试推出新产品？你是继续约会新人，还是试着对已经认识的人做出承诺？继续寻找新事物 vs 最大化收获已有事物价值的最优平衡点是：1/3。把1/3的时间花在探索上，2/3的时间花在深化上。随着年龄的增长，将时间投入到探索和尝鲜中是比较困难的，因为花费的时间似乎是低效，但请尽量试到1/3处再决策。
I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up and boy does that help, particularly when you have a long run ahead of you.
