How to briefly analyze the image of the character "Don Quixote" by Spanish writer Cervantes?

Don Quixote is the main character of Cervantes's work "Don Quixote", he is an absurd knight, but also a crazy madman who ignores the reality of society and dreams of restoring chivalry day and night. As long as it does not involve chivalry, he is also very sober and wise, and can often be far-sighted and disparaging of the current situation, saying a lot of subtle truths. Don Quixote's remaining valor was a hilarious and scandalous result, and he returned home in defeat, only to come to his senses just before the end of his life.