今天种下的每一棵树都是留给后代的遗产。
Every tree planted today is a legacy for tomorrow's generations.
如果你不喜欢某件事,就去改变它。如果你无法改变它,就改变你的态度。
The strength of a response tendency depends on the amount of reinforcement received.
在追求让你灵魂燃烧的事物时无所畏惧。