"To train a hawk you must watch it like a hawk."

The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay of symmetry and topology leads to novel quantum states of matter.

Every age has its pleasures, its style of wit, and its own ways.

跨境合作不是可选项，而是我们拯救共享海洋的唯一途径。

作家要么是隐居的实践者，要么是内疚的、有过失的人。