林业的未来在于平衡经济需求与生态责任。

"The advantage of poetry over life is that poetry, if it is sharp enough, may last."

The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind.

预测未来的最好方法是塑造它。

解释：树冠大了必然会折断，尾巴大了自然不能摆动，这是你知道的道理。