The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

Seize the day,boys.Make your lives extraordinary.

When you focus on doing what's right rather than what's easy, success follows naturally.

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。

The challenge of modern physics is not just to understand the universe, but to understand our place within it.

The world is full of stories, but the stories are all one.

Your time is limited， so don’t waste it living someone else’s life.

记忆是我们不断告诉自己我们的故事的方式——并且告诉别人一个稍微不同版本的故事。