"The goal is not to mourn the lost futures, but to use them as a resource for the struggle to come."

A tranquil mind is the source of health.

量子力学的美在于它能够揭示看似不相关现象之间的隐藏联系。

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.