幸福不是现成的,它来自于你自己的行动。
I don't have to be perfect. I just have to try my best.
可持续性已不再是一种选择,而是我们对后代的责任。
The history of men is the history of their crimes.
The best solutions often come from listening to those who work the land every day.
The essence of learning is the acquisition of meanings.