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.

当人们最确信自己并充满傲慢时，通常最容易犯错误，情感主导了他们的判断，没有经过恰当的审慎，而只有审慎才能使他们远离最荒谬的错误。

生存的唯一途径是记住我是人类，而作为人类就意味着永远处于不断变化的状态中。

"The only limit to our realization of tomorrow is our doubts of today."

心灵不是一种物质，而是一个过程。