 The major publication of Jaspers’s earlier period, and probably of his entire career, is the three-volume work: Philosophy (1932). In this work, he retained the partly Hegelian focus of his earlier publications, and he followed the spirit of Hegelian phenomenology in providing an account of the formation of human consciousness, which grasps consciousness as proceeding from the level of immediate knowledge and progressing through a sequence of antinomies towards a level of truthfully unified reflection and self-knowledge. In this, Jaspers again accentuated the claim that the antinomies which reason encounters and resolves in its unfolding as truth are at once both cognitive and experiential antinomies, and that the lived moments of human existence are always of cognitively constitutive relevance for the formation of consciousness. These ideas in fact remained central to Jaspers’s philosophy throughout its subsequent evolution. In his later philosophical works, especially Von der Wahrheit (Of Truth, 1947), he continued to give prominence to cognitive models derived from Hegelian phenomenology, and he proposed a concept of the encompassing (das Umgreifende) to determine the phenomenological gradations of thought and being. However, in addition to its concern with Hegelian themes, Philosophy also contains a fundamental reconstruction of Kantian themes, it has its foundation in a critical reconstruction of Kant’s doctrine of transcendental ideas, and it is built around an endeavour to explain the elements of Kantian idealism as a systematic doctrine of subjective-metaphysical experience.