The most important thing is to awaken in the child his own will and ability to create.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The harder you work, the luckier you get.

Dans le doute, abstiens-toi.

心理学必须是一门纯粹描述性的科学。

希望是让我们继续前进的东西，即使道路黑暗。