成绩差距主要是知识差距。
It's not always necessary to be better than everyone else, but to be better than you used to be.
The biggest regret in life is giving up what should not be given up easily, and stubbornly persisting in what should not be persisted.
最好的事业往往吸引最糟糕的论据支持,这在智力和道德层面上似乎同样适用。