Ignorance is the root and stem of all evil.

作家的职责是严谨、诚实地写作，永不妥协。

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

每个孩子都应该在他们读的故事中看到自己。

我不害怕站出来投关键球。