A healthy animal is the foundation of a healthy food chain.
The coal industry is the backbone of America.
世间美好的事物往往不牢固，彩云容易消散，琉璃容易破碎
All you have to do is write one true sentence. Write the truest sentence that you know.
The wilderness is the greatest teacher. It doesn’t give you answers, but it shows you how to find them.
释义：不要去追求佛在灵山，灵山就在你心里。
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
时间是个滑溜溜的东西：一旦失去控制，它的线索可能会永远从你手中溜走。