导师的职责是指导孩子的智能活动和孩子的心理。

数学是一门艺术，作为艺术家，你必须对自己诚实。

伟大的领导者倾听多于发言。

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

处于逆境，思想要开拓放达，奋发图强；处于顺境，思想要警觉收敛，约束自身。