Understanding nature’s complexity is the ultimate challenge.

In the examination of the parts of animals, I have diligently endeavored to arrive at the truth.

绝不能为了短期利益而牺牲质量。

天地间万事万物的本质，惟有心静的人才能体味出来；天地间万事万物的规律，惟有心静的人才能彻底掌握。