"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."
所有老人共同的大秘密是，在七八十年里，你其实并没有改变。你的身体变了，但你一点都没变。
User needs are the driving force behind our progress.
你必须在别人不努力的时候努力，这样你才能在别人不发光的时候发光。