理论的发达程度取决于实践的需要程度。实践造就理论 ,理论指导实践。这是唯物主义的基本原理。中华民族是一个勤于思考的民族 ,并且经历了诸子百家的辉煌时期 ,可惜这种思考在以后的发展中逐步淡化了。自汉朝以后 ,出现了一种单纯技术和工艺化的倾向。中国的能工巧匠之多 ,堪 The degree of theoretical development depends on the degree of practical needs. Practice to create theory, theory to guide practice. This is the basic principle of materialism. The Chinese nation is a diligent and thought-provoking nation, and has experienced a brilliant period of hundreds of sages. Unfortunately, this thinking has gradually been diluted in its future development. Since the Han Dynasty, a purely technical and technological tendency has emerged. China’s many skilled craftsmen, worthy