我不会假装在冠状病毒之前一切都很完美。
The only thing I know is that I don't know anything.
The beginning of wisdom is the definition of terms.
I don't keep a journal. I keep a life.
The most profound ideas in mathematics often arise from the simplest observations.
古老智慧与现代思想的融合不是碰撞,而是一场舞蹈。
I'm not a beginning, I'm an end.