VI. The Age of Kant and Goethe

With this appreciation of mathematics the thought tendency of modern history of philosophy, which had put the characteristic stamp on Spinoza's realm of thoughts, appears in Kant's mind. Spinoza wants to construct his thought sequences in such a form that they develop strictly from one another as the propositions of mathematical science. Nothing but what is thought in the mode of thought of mathematics supplies the firm foundation on which, according to Spinoza, the human ego feels itself secure in the spirit of the modern age. Descartes had also thought in this way, and Spinoza had derived from him many stimulating suggestions. Out of the state of doubt he had to secure a fulcrum for a world conception for himself. In the mere passive reception of a thought into the soul, Descartes could not recognize such a support yielding force. This Greek attitude toward the world of thought is no longer possible for the man of the modern age. Within the self-conscious soul something must be found that lends its support to the thought. For Descartes, and again for Spinoza, this is supplied by the fulfillment of the postulate that the soul should deal with thought in general as it does in the mathematical mode of conception. As Descartes proceeded from his state of doubt to his conclusion, “I think, therefore I am,” and the statements connected with it, he felt secure in these operations because they seemed to him to possess the clarity that is inherent in mathematics. The same general mental conviction leads Spinoza to elaborate a world picture for himself in which everything is unfolding its effect with strict necessity like the laws of mathematics. The one divine substance, which permeates all beings of the world with the determination of mathematical law, admits the human ego only if it surrenders itself completely to this substance, if it allows its self-consciousness to be absorbed by the world consciousness of the divine substance. This mathematical disposition of mind, which is caused by a longing of the “ego” for the security it needs, leads this “ego” to a world picture in which, through its striving for security, it has lost itself, its self-dependent, firm stand on a spiritual world ground, its freedom and its hope for an eternal self-dependent existence.