人生最紧要系活得开心，其他都系次要。

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

By nature, all things are common.

Learning is a process of creating and strengthening neural pathways.

Act as if what you do makes a difference. It does.

"The truth is not always beautiful, but it is always necessary."

心灵是一个积极、动态的过程，而非被动的容器。