In mathematics, truth is always relative to the system you're working in.
I earnestly wish to point out in what true dignity and human happiness consists.
生活中没有什么事情会像你在思考它时认为的那么重要。
The real art of conversation is not only to say the right thing at the right place but to leave unsaid the wrong thing at the tempting moment.
乳制品行业必须发展,以满足人类和地球的需求。
Overfishing is a theft from future generations.