爱是自由的；承诺永远爱同一个女人，与承诺永远相信同一个信条一样荒谬。
The study of the early universe is not just about understanding the past, but also about uncovering the fundamental laws that govern all of reality.
阅读只为心灵提供知识的材料；是思考使我们所读的东西成为我们自己的。
物理学家必须拥有生动的直觉想象力，因为新思想不是通过演绎产生的，而是通过艺术性的创造性想象。
The only way to discover the limits of the possible is to go beyond them into the impossible.
The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have ended in the victory of the former.
The world is a great desert, and we are the travelers.
创造就是活两次。