古代著书立说的人，都是有所为而为之，不是随便写写的。

The artist is the confidant of nature, flowers carry on dialogues with him through the graceful bending of their stems and the harmoniously tinted nuances of their blossoms.

生物学的美在于它的复杂性和它呈现的无尽可能性。

Forestry isn't extraction—it's cultivation on nature's timescale.

解释：君子不因为天色昏暗而毁弃自己的行为举止。

领导力就是做出今天艰难的决定，造福下一代。