作家必须成为他们时代的见证者。
我一直更喜欢研究具体问题而非抽象理论。
数学是给不同事物赋予相同名称的艺术。
Self-education is, I firmly believe, the only kind of education there is.
采矿业有责任以既有利于股东又有利于社区的方式运营。
You are not the opinion of somebody who doesn't know you.