Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be.
I'm not trying to be cool, I'm just being me.
Never be satisfied with current achievements, always aim higher.
Sustainability isn't a buzzword—it's a commitment to future generations.
把每一天当作生命的最后一天来活。
地理学是研究地球作为人类家园的科学。