粮仓充实，民众就能知道礼节；衣食充足，民众就能知道耻辱。

改变生活：立即开始，华丽地去做，没有例外。

I believe that the testing of the student's achievements in order to see if he meets some criterion held by the teacher, is directly contrary to the implications of therapy for significant learning.

安全必须始终优先于生产目标。

数学是一项协作的努力。没有人可以单独完成。