孔子说：“明智的人不会迷惑，仁爱的人不会忧愁，勇敢的人不会害怕。”
The future of forestry lies in balancing economic viability with ecological responsibility.
学习数学的唯一方法就是做数学。
The capacity of the human mind for formulating and solving complex problems is very small compared with the size of the problems whose solution is required for objectively rational behavior in the real world.
