Know, understand from the original meaning. This is an arrow in the mouth. The following passage is taken from Baidu.
"The ancients called arrows' arrows'. The arrow is called dysprosium or dysprosium. All kinds of crossbows use arrows. It can be said that the arrow and the bow are contemporary products. The earliest arrow was very simple. It was cut into a certain length with a tree stick or bamboo pole and sharpened at one end. The real origin of the arrow should be the stone age of primitive society. People grind stone pieces, bones or shells into sharp shapes and install them at one end of the shaft to make arrows with stone arrows, bone arrows or shell arrows, which is a big step forward compared with arrows cut with wooden sticks and bamboo poles. In order to hit the target more accurately, we must master the direction of the arrow in flight, so people put feathers at the tail of the arrow shaft to make the shape of the arrow perfect. "
The above paragraph shows that the purpose of mouth is not only the function of supplementing nutrition such as eating and drinking water. The more important function is the function of speaking. The role of words is embodied in making enemies or hunting. In order to play this function, we need to have accurate goals. Therefore, if you want to improve your intelligence, you can't do without the improvement of your language ability. People's application of language is the application of the laws they have mastered. Students should be encouraged to use it more in teaching (of course, the goal should be clear and the application should not be aimless). The significance of students' application lies in transforming the rules in books into students' internal psychological construction.
Knowledge, in its original sense, means language, sound and concept. Ge is an ancient weapon. Mainly used to hook and peck the enemy. The most obvious difference between this weapon and other weapons is that it can capture the enemy alive without hurting his body. This is very similar to the tools we now use to hook fruit on trees. By hook and peck, the object breaks away from the original connection and becomes its own thing. At this time, Ge refers to the hook and peck of words. By hooking and pecking, words break away from the original connection and become their own things. The result of physical vibration and ringing of objects is called "sound". In the word knowledge, sound is the core. Words must vibrate and ring to produce effects. The result is "knowledge".
Can it also be explained that speech works through vibration and * * *. And the role played by the hook becomes your own thing after a peck. This explanation is not good, because words become sounds. The object pecked by the hook became sound. Then it is better to simply delete the words.
As can be seen from the structure, the word "knowledge" originated from words, and finally became its own thing through a series of psychological operations or activities. He can be a verb or a noun. As a verb, as a psychological activity. As a noun, as the result of psychological activities. The word "knowledge" can also be used as a verb, a noun and the result of psychological activities. The word "knowledge" in our usual sense is used as a noun. The result of psychological activities. The result or significance of this psychological activity is that you can gain something by mastering knowledge. And this kind of income can turn matter (our mouth) into strength or ability (if correct, it can play a sharp weapon to change or conquer objects-arrow). At the same time, you can turn other people's words into your own spiritual strength (knowledge). This is the value and significance of knowledge.
To master knowledge, we must master the law of psychological activities of knowledge. Teaching knowledge lies in the method of teaching students psychological activities. The method lies in application. The value and significance of knowledge lies in its application. In short, special psychological activities produce knowledge. And knowledge (a psychological activity) makes people's psychological activities more valuable.
Excerpt, I hope it will help you.