不幸福的主要原因从来都不是你身处的状况,而是你对此的想法。
The primary cause of unhappiness is never thesituation but your thoughts about it.
我们今天种植的每一棵树都是对更绿色、更健康的未来的投资。
"Never stop learning. The world is always changing, and you must change with it."