Ernst Tugendhat is a Czech-born German philosopher.
Tugendhat studied classics at Stanford from 1944 to 1949, and went on to do graduate work in philosophy and classics at the University of Freiburg, receiving his doctorate with a work on Aristotle in 1956. During the years 1956−1958 he did post-doctoral research at the University of Münster. From then until 1964 he was an assistant professor in the Department of Philosophy at the University of Tübingen, where, after spending 1965 lecturing at the University of Michigan in Ann Arbor, he gained his Habilitation in 1966 analyzing the concept of truth in Edmund Husserl and Martin Heidegger.
I don't like his reconstruction of Husserl or Heidegger, but I've written a goddamn thesis about his critique of Heidegger's theory of truth and I gotta give him credit for it - it stands regardless. Hell, I'd look insane for being interested in the truth-theories of phenomenology if it wasn't for this guy. Very stimulating when it comes to this ultra-specific topic.