This article examines the transformation of the “heart of the world” concept and its influence on the understanding of what causes planetary motion. It begins with Aristotle’s conception of the sphere of the fixed stars and that of commentators such as Simplicius, Averroes, and Aquinas. The focus then shifts to the notion of a mobile Sun positioned between the upper and lower planets in the geocentric tradition of Macrobius, medieval, and Renaissance thinkers. We then examine the transition to the Copernican Sun, which is both stationary in terms of its central geometric position but also perceived as the “natural” or vital center of the universe. These ideas are then traced from Copernicus and Rheticus to Kepler and Galileo. We will conclude with some considerations concerning Giordano Bruno and William Harvey, and the intriguing connection between the circulation of the blood and the Sun’s role as the heart of the world.

中文翻译：

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心脏、世界中心和运动原理：从亚里士多德到开普勒和伽利略


本文探讨了“世界之心”概念的转变及其对理解行星运动原因的影响。它始于亚里士多德关于恒星球体的概念以及辛普利修斯、阿威罗伊和阿奎那等评论家的概念。然后，焦点转移到按照马克罗比乌斯、中世纪和文艺复兴思想家的地心说传统，移动的太阳位于上行星和下行星之间的概念。然后我们研究了向哥白尼太阳的转变，它的中心几何位置既是静止的，又被视为宇宙的“自然”或重要中心。这些思想随后可以从哥白尼和莱蒂克斯追溯到开普勒和伽利略。最后，我们将对佐丹奴·布鲁诺和威廉·哈维进行一些思考，以及血液循环与太阳作为世界心脏的角色之间的有趣联系。