古人对勤字特别看重。有句俗话：一年之计在于春，一日之计在于晨，一生之计在于勤。著名数学家华罗庚有句名言：“勤能补拙是良训，一分辛苦一分才。”著名经济学家于光远有一枚印章，上面刻着“无时不思，无日不写”。仅“文革”以后近２０年，他家里收藏的废铅笔头就有几千 The ancients pay special attention to the word. There is a saying: The plan of a year lies in the spring, the plan of a day is in the morning, and the plan of a lifetime lies in diligence. Well-known mathematician Hua Luogeng has a famous saying: “Qinnengbuzhuo is a good training, a bit hard one point.” The famous economist Yu Guangyuan has a seal engraved with “all-time thinking, no day without writing.” In the nearly 20 years after the “Cultural Revolution” alone, there were thousands of scrap pencils collected in his home