本篇文章主要討論關於馬里旦提出來關於自由的概念，為了了解馬里旦某些令人難解的思想，我們必須藉助理解多瑪斯的思想來幫助了解馬里旦。馬里旦在「自由的征服」這篇文章討論了什麼是自由。馬里旦指出來為了正確地理解自由，人格的概念和獨立的自由是不可分的，因此研究多瑪斯思想中 ，意志作為本性(voluntas ut natura)以及意志作為理智(voluntas ut ratio)的概念是必要的。這篇文章討論分為兩個層次，一是人與個體性，二是意志作為本性和意志作為理智，目的有兩部份，首先考慮馬里旦在建立個體和人格之間的所有差異，其次，藉由放在多瑪斯脈的之內了解他所說的自由，這個脈絡包了哲學的和神學的。

In the essay, I want to discuss Maritain’s concept of freedom. If we want to understand some obscure thoughts about Maritain, we have to understand Thomas’s thoughts. In the essay entitled “The Conquest of Freedom.”, Maritain illustrates what freedom means. He indicates it is inseparable between the notions of personality and independent freedom. It is therefore necessary to study the Thomistic concepts of the will as nature (voluntas ut natura) and the will as reason (voluntas ut ratio). My purpose is this paper will be twofold: to consider first of all the differences which Maritain establishes between individuality and personality, and secondly, to understand what he says about freedom by placing it within the Thomistic context which is both philosophical and theological.