One should not work on such problems, one should leave them to the philosophers.
人们不应该研究这样的问题，应该把它们留给哲学家。
The process of grouping, of organization, is not arbitrary but follows definite laws.
"Stories are the way we teach children how to navigate the world with courage and kindness."
Every tree planted today is a legacy for future generations.
我们都在阴沟里，但仍有人仰望星空。