自由不仅仅是摆脱枷锁，而是以一种尊重和增进他人自由的方式生活。

For the eyes of the world now look into space, to the moon and to the planets beyond, and we have vowed that we shall not see it governed by a hostile flag of conquest, but by a banner of freedom and peace.

Love is the most powerful force in the universe.

可能世界是被规定的，而不是通过强大的望远镜发现的。

经济学的目标是理解如何以最高效的方式分配稀缺资源。

I'm so high, I can hear heaven.

写作是对遗忘的一种抵抗。

Collaboration across sectors is key to solving the world's toughest challenges.