Hegel

n. family name; Georg Wilhelm Friedrich Hegel (1770-1831), German philosopher whose dialectic procedures for settling opposites had an influence on Existentialists and Marxists

Georg Wilhelm Friedrich Hegel (August 27, 1770 –  November 14, 1831) was a German philosopher and, with Johann Gottlieb Fichte and Friedrich Wilhelm Joseph Schelling, one of the representatives of German idealism. Hegel influenced writers of widely varying positions, including both his admirers (Bauer, Marx, Bradley, Sartre, Küng), and his detractors (Schelling, Kierkegaard, Schopenhauer, Nietzsche, Heidegger). Hegel discussed a relation between nature and freedom, immanence and transcendence, and the unification of these dualities without eliminating either pole or reducing it to the other. His influential conceptions are of speculative logic or "dialectic," "absolute idealism," "Spirit," the "Master/Slave" dialectic, "ethical life," and the importance of history.
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Noun
1. German philosopher whose three stage process of dialectical reasoning was adopted by Karl Marx (1770-1831)
(synonym) Georg Wilhelm Friedrich Hegel
(hypernym) philosopher