Being and Time Heidegger's "description of the world of phenomena" to be "fascinating, but maddeningly abstract". He suggests that much of "Being and Time" is a "description of a private spiritual journey" rather than genuine philosophy, and notes that Heidegger's assertions are unsupported by argument. Stephen Houlgate compares Heidegger's achievements in "Being and Time" to those of Kant in the "Critique of Pure Reason" (1781) and Hegel in "The Phenomenology of Spirit" (1807) and "Science of Logic" (1812-1816). Simon Critchley calls the work Heidegger's "magnum opus", and writes that it is impossible to understand developments in continental philosophy after Heidegger without understanding it.
John O'Neill (philosopher) John O'Neill (philosopher) John O'Neill is a philosopher. He is professor of Political Economy at the University of Manchester. John O'Neill held the post of professor of philosophy at Lancaster University. Previously, he was on the faculty of the University of Sussex and the University of Wales. Books Journal articles Mark Peacock wrote that in "The Market: Ethics, Knowledge and Politics" "O'Neill defends an Aristotelian perfectionism which allows for a plurality of goods pursued for their own sake...The argument is sound, but does not answer the liberal objection to Aristotle that individuals must be allowed to pursue "what they believe