The process of doing mathematics is as important as the result itself.

Contemplating the weaknesses of others is easy； contemplating the weaknesses in yourself is hard， but it pays a much higher reward.

中心地的六边形排列最小化了市场区域的重叠。

In global competition, we must maintain an open mind and a learning attitude.

"The wound is the place where the Light enters you."

Sorrow is knowledge.