知足是天然的财富，奢侈是人为的贫困。
Contentment is natural wealth，luxury is artificial poverty.
Sustainability isn't a trend—it's a responsibility we owe to future generations.
A people without children would face a hopeless future; a country without trees would face a future with even less hope.
你必须投入时间，因为总有你可以改进的地方。
Never underestimate the power of a motivated team to overcome obstacles.
You can do anything you set your mind to, man.