永远不要停止学习。当你认为自己无所不知的那一刻，就是你停止成长的那一刻。
Never stop learning. The minute you think you know it all is the minute you stop growing.
The night is a great forest, but the stars are its trees.
The only way to survive is to keep moving forward.
Every mathematical problem has a solution; it just takes time and creativity to find it.
The six colors， including the white background， represent the colors of all the world's flags ... this is a true international emblem.
质量永远不应该妥协，即使是为了速度。
最终，我们记住的不是敌人的话语，而是朋友的沉默。