Quality is never an accident; it is always the result of intelligent effort.

Man's survival, from the time of Adam and Eve until the invention of agriculture, must have been precarious because of his inability to ensure his food supply.

森林的真正价值不能用板材英尺来衡量，而应该用地球的呼吸来衡量。

即使在最黑暗的时刻，幸福也有迹可循，只要记得点亮灯。

"The magic of reading is that it allows us to live a thousand lives."

新殖民地的建立者，无论他们最初可能设想出多么乌托邦的人类美德和幸福，都无一例外地在他们最早的实际需求中认识到，必须分配一部分处女地作为墓地，另一部分作为监狱的所在地。