王夫之以性者生理、日生日成的人性生成觀反對既往一受成侀的現成人性觀，通過「天之幾」和「人之幾」兩個交相引發、彼此對生的原初維度彰顯出一個動態、開放和能動的人性意義生成境域。他以性善在「天之幾」上說明人的類特性，而更突出個人在「人之幾」上的「繼」、「權」、「習」，從而就充分肯定了人的自由意志。由此，王夫之的人性生成論思想表明，人對自己擁有什麼樣的人性有著最終的決定權和自主權。

Instead of the prevailingly ready-made constant view on human nature, Wang fuzhi considers it to be developing. Through the two interdependent and contradictory dimensions, the concepts of boundary between heaven and human beings and relationship between mankind and their surroundings, a realm of dynamic, open and motile formation of human meaning is manifested. In dimension of inborn kindness within human, he concentrates on independence and self-behaving from acquired realm. Thus, Wang fuzhi’s thoughts on the theory of human nature shows, for a specific person, that the real value of him doesn’t come from either congenital nature or wordly possessions or any other things. And it is human beings that decide their own decision-making powers and autonomous rights.