Words are the only thing that lasts forever.
你可以想错,但无论如何要为自己思考。
培养感恩之心是提高生活满意度最可靠的方法之一。
I don't stop when I'm tired, I stop when I'm done.
I'm not here to please everyone; I'm here to be myself.
The study of mathematics is like air or water to the development of science.