The past is always changing. It is not fixed. The past is not stable.

Challenges are what make life interesting and overcoming them is what makes life meaningful.

记忆是个奇怪的东西，它不像相机或录音机那样工作，它会重建事物，用现在的剪刀剪辑过去。

音乐有着无与伦比的力量，能将人们凝聚在一起。

Wisdom acquisition is a moral duty. It’s not something you do just to advance in life. And there’s a corollary to that proposition which is very important. It means that you’re hooked for lifetime learning, and without lifetime learning you people are not going to do very well. You are not going to get very far in life based on what you already know.

The reason they call it an American Dream is because you have to be asleep to believe it.