如果你想飞翔，就必须放弃那些拖累你的事物。

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

The truth is not in the words, but in the spaces between them.

教师是太阳，学生是月亮。教师发光，学生反射。

心理学的方法必须像自然科学一样精确。

短期收益绝不应损害长期可持续性。