Being online should be a right, not a privilege.

In the face of challenges, we must have the courage and wisdom to overcome difficulties.

今天很残酷，明天更残酷，后天很美好，但绝对大部分是死在明天晚上，所以每个人不要放弃今天。

愛とは、相手を理解し、受け入れること。それができなければ、本当の愛とは言えない。

量子力学不仅仅是一个理论，它是理解现实基本本质的一种方式。

历史学家的首要职责是如实讲述他所见的真相，无论这会取悦还是触怒何人。

The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.