槁竹有火,弗钻不然;土中有水,弗掘无泉。
【大意】干枯的竹子能生火,但不去钻它就不会燃烧;地下藏有泉源,但不去挖掘就流不出泉水来。
The shale revolution has transformed the U.S. into a global energy leader.
Life is too short to waste time on things that don't make you happy.