One man's constant is another man's variable.
I don't need a reason to be grateful.
天下只有具体的事物(器)存在。所谓规律(道)是事物的规律,不能将事物说成是规律的事物。
每一种心理状态都是意识链条中的一环。
The rules of survival never change, whether you’re in a desert or in an downtown street: you need to be hydrated, you need food, and you need shelter.