亚里士多德在《尼各马可伦理学》中有两卷文字以“友爱”为主题,其中这样描述“友爱”:“它是一种德性或是包含一种德性,它是生活最必需的东西。”友爱是人性中的善,人与人相互间与人为善即为友爱,它属于德性的一种,它是与身俱来的人性在后天教育和环境相互作用中产生的品质,人与人交往间的友爱不仅是人应具备的优良品质,也能提高幸福感,本文从友爱的定义开篇,围绕友爱能提高幸福感为主题展开,最后阐述如何通过友爱来提高幸福感,对友爱这个德性的理解有积极意义。 Aristotle has two volumes in Nicomachean ethics on the theme of “Friendship ”, which describes “Friendliness ”: “It is a virtue or contains a Virtue, it is the most essential thing in life. ”Friendship is the goodness of human nature, human beings and people are friendly, and it belongs to a kind of virtue, it is the human nature with the education in the day after tomorrow and The quality of intercourse and the interpersonal friendship between people are not only the good qualities that people should have, but also the happiness. This article begins with the definition of fraternity, starts with the theme that fraternity can improve happiness, and finally shows how It is of positive significance to improve the sense of happiness through friendship and understanding of the virtue of friendship.