The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
可持续性不是成本;而是对我们共同未来的投资。
"A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people."
一个人笑的时间是与众神共度的时间。