Loneliness is not a lack of company, but a lack of purpose.

We must be vigilant in protecting the Internet from those who would misuse it.

成功绝非偶然。

所有的大人都是孩子，只要你未曾遗忘。

We need to understand the brain to build better AI.

学校必须是孩子生活的地方，而不仅仅是为生活做准备的地方。

One of the advantages of being old is that you can speak your mind without worrying about the consequences.