I ching books and direct access to books.

The Book of Changes directly refers to a book, but it is actually a book, which is based on 60 hexagrams, plus some explanations, such as copula, preface hexagrams and miscellaneous hexagrams.

People who don't have the basic knowledge of easy learning read it, which is equivalent to reading a gobbledygook. After you have the foundation, you can read it, but even if you understand it all, it's no use memorizing every hexagram. You can learn at most one dictionary. Or if you recite 100 world famous books, you may not be able to write a good article. As long as you look at the book Zhouyi, you will understand why it came into being and what it is about. Just look it up in the dictionary. It is programmatic and inclusive, just like parents, such as Adam and Eve. The terrible thing is that their children all have their blood and genes, but they shine in different fields.

Zhouyi is a huge philosophical system in a sense, which cannot be used to explain everything, but from the perspective of image number, it is also the earliest Zhouyi itself, which is a divination and prediction of the future. It itself is only superficial through hexagrams, words and hexagrams, but its descendants are six hexagrams, eight characters, big six-year-old, small six-year-old, purple purple and plum blossoms.

So Newton invented gravity, but its use allowed future generations to carry forward his knowledge and apply it to the extreme. That's the truth.