孔子曾自述了他学习和修养的过程后说:“我十五岁立志于学习;三十岁能够自立;四十岁能不被外界事物所迷惑;五十岁懂得了天命;六十岁能正确对待各种言论,不觉得不顺;七十岁能随心所欲而不越出规矩。”所以,自古以来人们就开始遵循了这条人生规律:二十弱冠,三十而立,四十不惑,五十知天命,六十耳顺,七十从心所欲。这一过程,是一个随着年龄的增长,思想境界逐步提高的过程。就思想境界来讲,整个过程分为三个阶段:十五岁到四十岁是 Confucius once described his process of study and cultivation and said: “I was determined to study at the age of fifteen; I was able to become independent at the age of forty; I was not fooled by the outside world at the age of forty; I knew destiny at the age of fifty; Can treat correctly all kinds of remarks, do not feel bad; seventy years of arbitrary but not out of the rules. ”So, since ancient times, people began to follow this rule of life: twenty weak, thirty and forty Fifty know the destiny, sixty ears down, seventy desires. This process is a process of gradual improvement of the ideological realm as we age. In terms of ideology, the whole process is divided into three stages: fifteen to forty years old