害怕死亡是无知的表现。

孔子说：“有益的爱好有三种，有害的爱好有三种。爱好礼乐、爱好称赞别人的优点，爱好广结善友，有益处；爱好放荡、爱好闲逛、爱好大吃大喝，有害处。”

最可持续的产品是能持续一生的产品。

教师是太阳底下最光辉的职业。

The true power of mathematics lies in its ability to reveal the hidden patterns and structures that govern the universe.

There is no greater tyranny than that which is perpetrated under the shield of the law and in the name of justice.

The land is the real client, not the person who pays the fee.