The meaning of a word is its use in the language.

It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.

Mental activity is always directed toward some end.

Efficiency in farming shouldn’t come at the cost of biodiversity.

持续学习是保持竞争优势的唯一途径。

天下各种力量消长的态势都是逐渐形成的；天下任何事业的成功都是靠日积月累而取得的。