理论与实践接近,便产生最好结果。受益的不仅是实践方面,就是理论科学本身也将受到刺激而发展起来,因为前者替它揭示出了新的研究对象或已知对象的新侧面。 切比雪夫:《论地图制法》,1856年 曾经参加过1812年抗击拿破仑入侵战争的退役军官列夫·巴甫洛维奇有九个子女。二儿子天资颖慧,勤奋好学,但不幸童年时左脚残疾了,走路一跛一拐,幼小心灵蒙受创伤,父母也为之悲观失望。谁知,后来他竟成为十九世纪俄罗斯的教学王子、彼得堡学派的奠基人,他就是巴·里·切比雪夫。 Closeness between theory and practice produces the best results. It is not only the practical aspects that benefit, but also the theoretical science itself will be stimulated and developed, because the former reveals a new aspect of the new research object or known object for it. Chebyshev: “On the Map System”, 1856 Retired military officer Lev Pavlovich, who had participated in the Napoleonic invasion war of 1812, had nine children. The two sons were gifted and diligent, but unfortunately his left foot was disabled during his childhood. He walked limped and his young hearts suffered traumas. His parents were also pessimistic and disappointed. Who knew that he later became the teaching prince of the 19th century Russia and the founder of the Petersburg school. He was Barry Chebyshev.