【解释】脑力劳动者统治人，体力劳动者被人统治；被统治者养活别人，统治者靠别人养活，这是通行天下的原则。

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

True innovation comes from faith in the future.

我不会让恐惧阻止我。