“太极”即“性”是张栻哲学的重要特点,这两个概念在他的学说中是同一层次的本体范畴。而张栻所以提出这个命题,可以从三个角度上理解:其一,“太极”而“形性之妙”以见其体用;其二,可能受到朱熹关联“太极”与“未发已发”进行思考的影响;其三,继承胡宏的性本论和对周敦颐的推重,“太极”则正是后者的重要概念。而张栻提出此命题并介绍给朱熹,应当在乾道三年朱熹会张栻于长沙之前。 “Taiji ” or “sex ” is an important feature of Zhang Huan’s philosophy. These two concepts are the same level of ontological categories in his theory. Zhang Zhang therefore put forward this proposition, which can be understood from three perspectives: one is “Taiji” and the other is “the magic of shape”; second, it may be related to Zhu Xi “Taiji Third, the inheritance of Hu Hong’s theory and Zhou Dunyi’s emphasis on ”Tai Chi" is the latter’s important concept. And Zhang Huan proposed this proposition and introduced to Zhu Xi, Zhu Xi will be in the trunk three years before Zhang Chang in Changsha.