Education is the foundation of sustainable forestry practices.
再说,义就是匡正的意思,不能以下正上,必须是以上正下。 
入住酒店房间时,先查看紧急出口。这只需要花一分钟时间。
大多数人害怕变化,但如果你把它看成是某种你总是可以依赖的东西的话,那它就能成为一种安慰。世上你能依赖的东西并不是很多。
Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. Simplicity is the ultimate sophistication.