做伟大工作的唯一方法是热爱你所做的事。
The only way to do great work is to love what you do.
"The poet is a liar who always speaks the truth."
预测未来的最好方法是创造未来。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
Modern forestry must balance three axes: ecology, economy and ethics.