一个人到底要抬头几次 才能看到天空?
How many times must a man look up Before he can see the sky?
The true test of a society is how it treats its most vulnerable members.
The best way to predict the future is to create it.
可持续发展不仅是一种趋势,更是我们对后代的责任。
质量就是在无人注视时依然把事情做对。