大家都爱言论自由。但有些人对言论自游的理解是，我想说就说，但你说我不喜欢的话就无法容忍。

He who sacrifices freedom for security deserves neither.

We work with the earth, not against it.

The only thing that is truly important is the difference you make in the world.

The true teacher defends his pupils against his own personal influence. He inspires self-distrust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.

我对什么是重要的，什么是不重要的有不同的理解。