Georg Wilhelm Friedrich Hegel
Phenomenology of Spirit (Phänomenologie des Geistes Sometimes translated as Phenomenology of Mind) 1807 (This gives an example of the problem: The English translators of the Phänomenologie des Geistes are not sure if they should translate "Geist" by "Spirit" or by "Mind", although the terms "Spirit" and "Mind" are sharply distinct in the English language.)