Although much material remains in unpublished manuscripts to this day, he did publish a score of books, including several volumes of historical commentary called
In 1948 Jaspers left Heidelberg for a post at the University of Basel in Switzerland. Before his death in 1969, he also published a popular introduction to his philosophy (
In Jaspers’s own judgment, the figure that was most important for the shaping of his own thinking was Immanual Kant, but he also credits Søren Kierkegaard, Friedrich Nietzsche, and Max Weber with inspiring his work.4 His readers, however, cannot help noticing the strongly Neoplatonist cast to much of his thought, and the four figures whom he quotes again and again are Plotinus, Bruno, Spinoza, and Schelling. The metaphysical matrix that in some way undergirds the rest of his writings, including the present volume, is Kantian and Neoplatonic. By his lights, it is simply impossible for a thinker to evade the “problem of being,” and yet one may never assume that “being is something generally understood.” With Kant, he repeatedly asserts the validity of the thesis that everything “objective” is always conditioned by “consciousness,” and thus he regards any claim about purely objective being (in his vocabulary,
Yet we live in the reality of the life-world, and so we do well to accept the Neoplatonic heritage of diverse spheres of being that philosophical reflection can progressively distinguish. There is a triad of levels of existence to be noticed: (1) the simple givenness of “objects” whenever individuals encounter anything real in their normal experience; (2) the human constructions of the life-world of the subject (internally within an individual and externally, for instance, in the trust-relations that constitute communities large and small); and (3) transcendent being that is always in principle beyond what any subject-mind can ever mentally encompass but to which the symbols devised by religion and philosophy regularly venture to point. Again, with Kant, Jaspers articulates a doctrine of Ideas that places him squarely in the tradition of German Idealism, yet always in a way that is tempered by the basic realism of Jaspers’s own medical and political heritage.