If we have no knowledge, we cannot succeed in doing any work. Why? Because knowledge is power. With knowledge we have conquered nature and invented steamers, trains and airplanes. We can send messages by telegram. We can talk with our friends by telephone.As is well known, we students are the future masters of the nation. She needs us very much. If we do not make efforts to acquire knowledge, how can we render service to her ?假如大家没常识，大家就不可以做成功什么事情。为何？由于常识就是力量。冯藉常识大家征服了大自然，并且创造了轮船，火车与飞机。大家可以用电报传递消息。大家可以用电话和朋友谈话。如大家都知道，大家学生都是国家将来的主人翁。她很需要大家。假如大家不努力去获得常识，以后怎么样来报效她呢？