每个人都认为自己是最重要的存在。这是很正常的。但真正重要的是，能否珍惜自己以外的某个人。

"We are all in the gutter, but some of us are looking at the stars."

The beauty of mathematics lies in its ability to describe the universe in a language that is both precise and universal.

我认为你不应该为你的热情道歉。