莺花犹怕春光老，岂可教人枉度春。
黄莺和鲜花尚且担心春光流逝，怎么可以白白虚度大好时光？
The problem isn't that Johnny can't read. The problem isn't even that Johnny can't think. The problem is that Johnny doesn't know what thinking is; he confuses it with feeling.
你唯一的限制是你给自己设定的限制。
可持续林业不是一种选择，而是我们的责任。