the physics on the interior includes a quantum theory of gravity ? something that string theorists have been developing for decades.
三维空间内部的物理则包含了量子重力论弦论学家数十年来致力发展的东西。Nothing in this world is a gift. Whatever has to be learned must be learned the hard way.
这个世界上没有东西是白送你的。无论学什么，你都必须经历困苦才能学到手。No matter what learning new things, language, a technology, a campaign when we appear to the beginner, we are a piece of blank paper.
无论学什么新的东西，一种语言，一门技术，一项运动，当我们以初学者的身份出现时，我们就是一张白纸。that is , we string theorists have some approximate equations for strings , but we do not know the exact equations.
换句话说，弦论学家只得到了一些弦的近似方程式，而仍不知道精确的方程式。No matter how profound your study will be, you have to start with down-to-earth self-improvement little by little.
无论学得多么高深都要从脚踏实地，一点点改变自己开始。Academic and Cultural Ideas of "Xue Heng School"
论“学衡派”的学术文化理念Mao Zedong s main thought of study are as follows: Our study should surpass the ancient people;
毛泽东的论学思想主要有：学要胜古人；积学贵有恒；书要反复读；A Tentative Probe into Confucius'Comments on "Learning" Process
孔丘论“学”过程初探A Discussion on Scholarship with Young Scholars in the New Century
新世纪与青年学子论学