中文摘要：

胡炳文认为：时不仅指时间和时机,而且包括事物当下所处一切具体情况的总和。《周易》的主旨是要让人＂知时达变＂。能正确认识＂时＂,便可以自然行权而得中。＂权＂不能滥用,必须以＂立＂为前提。时—权—中在逻辑上有先后关系,在实践中则是一体的,统称为＂时中＂。＂未发之中＂只能通过＂时中之中＂来显现。＂理一＂与＂分殊＂血脉相通,＂理一＂就在＂分殊＂之中。

英文摘要：

From Hu Bingwen＇s（1250-1333）perspective,shi（lit.,＂timeliness＂）not only refers to time and opportunity,but also includes the totality of all immediate circumstances.The main purport of the Zhou Changes is to let people know timeliness and adapt themselves to the salient changes.If one is correctly aware of timeliness,he can naturally act expediently and attain to centrality（zhong）.However,expedience should not be abused and has to be based on the establishment of morality.Although there is a relationship of logical precedence between timeliness,expedience,and centrality,they form one entity in practice,called shi zhong（lit.,＂timeliness and centrality＂）by ajoint name.The centrality hidden in one＇s heart/mind can be manifested only in the centrality of the shi zhong.Universality and particularities are inseparable and the former dwells in the latter.