What we know is little, and what we are ignorant of is immense.

The best time to plant a tree was 20 years ago; the second best time is now.

写作是一种自由的行为，但也是一种责任。

The ethical issues of AI must be considered simultaneously with technological development.

对民主最大的威胁是对制度的信任侵蚀。

我不是傲慢，我只是相信我是最好的。