数学的本质不是使简单的事物复杂化，而是使复杂的事物简单化。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
The most comfortable chair is the one I use myself when I have visitors.
The chemical industry is the backbone of modern civilization, and we must treat it with the respect and responsibility it deserves.
看遍了世间的人情冷暖，才认识到旷达洒脱的可贵；尝遍了世间的种种滋味，才知道清净淡泊的真切内涵。
Ideology represents the imaginary relationship of individuals to their real conditions of existence.
意识形态表现了个体与其真实存在条件之间的想象关系。
Profit and purpose can coexist when companies prioritize long-term value over short-term gains.