孤独就是与众不同，与众不同就是孤独。

我们的科学力量已经超过了我们的精神力量。我们有导弹，但我们的人类道德方向已经偏离。

"A story is a letter that the author writes to himself, but others are allowed to read."

A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.

不要看时钟；做时钟做的事。继续前进。