二千多年前的孔子说:“吾十有五而志于学,三十而立,四十而不惑,五十而知天命,六十而耳顺,七十而从心所欲,不逾矩”(《论语·为政》)。这是一个学者总结自己一生学术思想发展的不同历程。人的一生都要经过婴幼、儿童、少年、青年、中年、壮年和老年这样的发展过程。能够正确认识和把握好人生长链的每个环节,即每个时期的角色特点,循着生命历程的轨道正常运转,就能使人生长链环环相接,熠熠发光,达到人生的辉煌和 Confucius, two thousand years ago, said: “I have ten and five studies, thirty and forty, forty and forty, forty and twenty and earnest, Analects of Confucius for the government ”). This is a scholar who summarizes the different course of development of his academic thought in his lifetime. All human beings have to go through such a process of development as babies, children, adolescents, youth, middle age, prime and old age. Able to correctly understand and grasp every aspect of the long chain of life, that is, the role of each period features, follow the track of life course of normal operation, people can link the growing chain link, gleaming, to achieve the glory of life and