所有老年人共享的大秘密是，你在七八十年里真的没有改变。你的身体改变了，但你一点也没变。当然，这会引起很大的困惑。
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.
The best way to learn computer architecture is to build one.
Psychology must be based on facts, not hypotheses.
拥有美好一天的唯一方法是以积极的态度开始它。
音乐是我的生命。这是我的激情。
Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.