German idealism

German idealism was a philosophical movement in Germany in the late eighteenth and early nineteenth centuries. It developed out of the work of Immanuel Kant in the 1780s and 1790s, and was closely linked both with romanticism and revolutionary politics. The predominant philosophers in the movement were Johann Gottlieb Fichte, Friedrich Schelling, and Georg Wilhelm Friedrich Hegel. Lesser lights include Friedrich Heinrich Jacobi and Schleiermacher. It is generally taken to have culminated with Hegel.

Reinhold

Karl L. Reinhold published two volumes of Letters Concerning the Kantian Philosophy in 1790 and 1792. They provided a clear explication of Kant's thoughts, which were previously inaccessible due to Kant's use of complex or technical language.

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Reinhold also tried to prove Kant's assertion that humans and other animals can know only images that appear in their minds, never things in themselves, that is, things that are not appearances in a mind. In order to establish his proof, Reinhold stated an axiom that could not possibly be doubted. From this axiom, all knowledge of consciousness could be deduced. His axiom was: "Representation is distinguished in consciousness by the subject from the subject and object,and is referred to both."

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He thereby started, not from definitions, but, from a principle that referred to mental images or representations in a conscious mind. In this way, he analyzed knowledge into (1) the knowing subject, or observer, (2) the known object, and (3) the image or representation in the subject's mind. In order to understand Transcendental Idealism, it is necessary to reflect deeply enough to distinguish experience as consisting of these three components: subject, representation, and object.

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