/kloc-After graduating from university at the age of 0/8, he followed in his father's footsteps and went to Paris to be a lawyer, where he studied mathematics under Mei Sen, a famous figure in mathematics. At that time, the social atmosphere in France was "either red or black", that is to say, people with lofty ideals were either dedicated to religious undertakings or to the army. After a year, 16 17, this noble son was really tired of the lawyer's lip service and joined the army. The soldier has been a soldier for nine years, but his interest in mathematics has never changed. Once, when I was wandering in Bolda, the Netherlands, I saw a list of geniuses posted on the street and solved several math problems. Onlookers talked a lot, but no one could answer. Descartes took off this list and quickly worked out those problems, which made him confident in his mathematical ability and settled down to study mathematics. 16 19, the barracks of Descartes army were stationed on the Danube. 1 1 One day in June, he was lying in bed because of illness and doing nothing. He remembered the problem that had tortured him for a long time. On the ceiling, a little spider crawled out of the corner, netting and busy. Climb from east to west and from south to north. How many roads does the little spider have to walk to make a web! Descartes began to think about how to calculate the distance traveled by spiders. He regards the spider as a point first, so how far is this point from the corner? How far is it from both sides of the wall? Groggy, he thought and thought, calculated and calculated, fell ill and fell asleep. In his dream, he seems to see spiders still crawling, and the distance from the walls on both sides is a little bigger and smaller? It seems that he realized something and saw something. Descartes woke up from a big dream: If you know the distance between the spider and two walls, can't you determine the position of the spider? After determining the position, it is natural to calculate the distance the spider walks. So, he solemnly wrote a theorem: under two perpendicular straight lines, a point can be expressed by the distance between the two straight lines, that is, two numbers, and the position of this point is determined. This discovery is not surprising to us now. Isn't that a coordinate map? There are too many textbooks for middle school students. What is this? However, it was a great discovery at that time, and it was the first time to connect algebra with geometry by combining numbers and shapes. It makes geometric concepts expressed in numbers, and geometric figures can also be expressed in algebraic form. This is the dawn of analytic geometry. Along this line of thought, with the efforts of many mathematicians, an important turning point has taken place in the history of mathematics, and analytic geometry has finally been established.
arouse
People who understand philosophy don't know Descartes and his famous philosophical basic theory: "I think therefore I am" or "I think therefore I am." Let him abandon almost all the existing philosophical theories. He may have been inspired by Socrates and Plato. "I only know that I don't know anything." If the imaginary world and my body no longer exist, then only this illusion exists, that is, I exist as the subject of the illusion. Therefore, it is further inferred that soul and body are separated. Then I am flawed (mentally flawed) or incomplete, so there must be a perfect existence from the beginning, and that is God.
I said in "On Aesthetics and Aesthetic Criticism of New Poetry", "Poetry is the expression that the living object proves its existence in the subject of the universe." From the above analysis, we can say that poetry is the shadow of words or words projected by the soul into the perceptual world. This shadow poem is the incomplete soul perfecting its footprint, which gradually moves towards the perfect God from the beginning. So really good poetry is the voice of the soul, which is completely spontaneous.