哲学社会科学是人们认识社会运动的本质和规律的知识体系。
Social science is an architectonic system for people to know the essence and law of social movement.
原则是对矛盾运动及其规律的理性认识。
Principle means rationally understanding contradiction movement and its rule.
通过认识物体的运动规律，学习科学分析的方法，掌握解决问题的思路，这才是物理学习的精髓。
By analyzing the motion of objects, students can learn scientific methods and problem solving strategies. This is the essence of learning.
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