科学无国界，因为知识属于人类，是照亮世界的火炬。

Own only what you can always carry with you: know languages, know countries, know people. Let your memory be your travel bag.

Sometimes a thing is broken and cannot be put back together.

I don't follow trends, I set them.

在距离与重量成反比的情况下，物体处于平衡状态。