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Substance and Function : Einstein's Theory of Relativity - Ernst Cassirer

Substance and Function

Einstein's Theory of Relativity

By: Ernst Cassirer

Paperback | 17 February 2026

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"Substance and Function and Einstein's Theory of Relativity" is a landmark contribution to the philosophy of science and epistemology by the renowned Neo-Kantian philosopher Ernst Cassirer. In the first part of this profound inquiry, Cassirer traces the historical development of logical concepts, contrasting the traditional Aristotelian concept of substance-which relies on abstraction and classification-with the modern mathematical concept of function. He argues that scientific progress is marked by a shift away from seeking the absolute essence of things toward understanding the relational and functional structures of the universe.

The second part of the work applies these epistemological findings to the revolutionary developments in contemporary physics, specifically "Einstein's Theory of Relativity". Cassirer demonstrates how Einstein's theories represent the logical culmination of the transition from substance-based thinking to functional thinking, providing a robust philosophical foundation for the new physical world-view. This work remains an essential text for readers interested in the intersection of mathematical logic, the history of scientific thought, and the philosophical implications of modern physics. It offers a rigorous analysis of how conceptual frameworks shape our understanding of reality and the laws of nature.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you may see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.

This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

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