言语有力量——明智地使用它们。

Every smell we perceive is a complex interaction between molecules and receptors, and understanding this interaction is key to understanding our sensory experiences.

人的喜怒哀乐的感情没有表现出来，叫做中；表现出来合乎法度，叫做和。达到中和，天地就各居自己的位置，万物也就生长了。