=== the road since structure(前两章) ===
1、我学习到了两个重要概念，觉得与学科的发展有很大关系，与上面的视频中所介绍的paradigm的更替也有很大联系：
'''Normal change''';is as already indicated, the sort that results in growth, accretion, cumulative addition to what was known before.
'''Revolutionary changes''': are different and far more problematic. They involve discoveries that cannot be accommodated within the
concepts in use before they were made.
（同样，在量子力学中“波粒二象性”的描述中也涉及这个问题，若只是通过以往术语的重新组合，尝试来阐释这一新的邻域，就类似“normal change”，
而且在量子力学中，这个“change”并不能给人很好的理解;
而我们需要寻找另一套全新语言、词汇，或是术语来界定这一新生概念，类似于科学中的“revolutionary change”，会更problematic，因为其本质是
超越人类目前所观测的极限的。）
'''
the pieces suddenly sorting themselves out and coming together in a new way-is the first general
characteristic of revolutionary change.
'''
2、牛顿与亚里士多德的理论(unfinished)
No example so schematic can more than hint at what is involved in
revolutionary change.