解释:脚力不强劲,行程就不会远;刀刃不锋利,割东西就不会深。
Give every man thy ear, but few thy voice; take each man’s censure,but reserve thy judgment.
A good mathematician is not one who knows all the answers, but one who asks the right questions.
消费者的信任很难赢得却很容易失去。我们必须每天保护它。