"Books are mirrors: you only see in them what you already have inside you."

儿童不仅在心理上是被动的，而且像一个空花瓶，是一个有待于充满及塑造的生命。

The higher the monkey climbs, the more it shows its tail.

The personality of the teacher is the cornerstone of education.

几何学是关于永恒存在的知识。

The path to a lower-carbon future will require multiple solutions and approaches.