I'm not a perfectionist, but I like to feel that things are done well.
Every mathematical theorem is a story waiting to be told, a mystery waiting to be unraveled.
Forests are the lungs of the earth—let's not suffocate them.
国家是人类社会中最重要的机构,因为它是唯一可以合法使用武力来维持秩序的机构。