四海变秋气,一室难为春。
天下都变成了秋天的气象,一个房间难以维持春天的温暖。
解释:君子所说的话,可靠而且有证据。
在商业中,如果你不前进,你就在落后。
Humility is the mark of a great leader.
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
The best way to predict the future is to create it.