Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life.

君子的学习，听在耳里，记在心里，体现在仪表举止上，表现在一举一动中。

The true power of mathematics is not in its complexity, but in its simplicity and elegance.

人生就像一场逆行的旅程，我也是其中的一个过客。