Locke criticized idealism's innate concept theory, systematically investigated human cognitive ability, and put forward the hypothesis that the mind was a "whiteboard" from the beginning, and believed that the knowledge and concepts that the mind mastered later came from experience. The following is the main content of his gentleman education thought: Locke attaches great importance to the good cultivation or etiquette of gentlemen, and is called "the second virtue of gentlemen" in the cultivation of etiquette: First of all, Locke emphasizes that the cultivation of gentleman's educated manners depends on education. Secondly, he thinks virtue is a kind of spiritual wealth. In order to make young gentlemen form polite habits, adults must set an example of kindness and virtue and peace discipline, instead of using harsh reprimands, and develop daily habits as natural as breathing. Good upbringing is an important condition for becoming a gentleman. On the one hand, don't be conceited, don't be modest, and be confident. On the other hand, don't be too artificial. Educated people must show their cultural temperament in appearance, voice, language, movements and expressions, and win the respect of others in addition to respecting others. Locke wants adults to understand and tolerate children's natural behavior. Locke also believes that to cultivate students' body and mind, just as the body must be honed, so that the body and mind can be sound and the gap between children and adults can be eliminated. A gentleman should be wary of two bad manners: one is shyness, the other is thoughtlessness and rudeness. Etiquette needs to learn the skills of interacting with people, that is, it can show its respect, attention and goodwill without being suspected of being flattering, hypocritical and despicable. Therefore, etiquette is actually an important virtue of a gentleman.