Being and Time essence of being is time is the opposite of Hegel's view that being is the essence of time. Karl Jaspers, writing in the first volume of his work "Philosophy" (1932), credited Heidegger with making essential points about "being in the world" and also about "existence and historicity". Heidegger's work has been suggested as a possible influence on Herbert Marcuse's "Hegel's Ontology and the Theory of Historicity" (1932), though Marcuse later questioned the political implications of Heidegger's work. Jean-Paul Sartre, who wrote "Being and Nothingness" (1943) under the influence of Heidegger's work, has been said to have responded to "Being and
Brian O'Shaughnessy (philosopher) Brian O'Shaughnessy (philosopher) Brian Joseph O'Shaughnessy (10 September 1925 – 7 July 2010) was an Australian philosopher of mind, who lived in London and taught at King's College London. He published influential papers on the nature of physical action and the will, at a time when this was quite unfashionable. He was born in Kew, a suburb of Melbourne in Australia, where his father was a doctor. He studied at Xavier College and then attended Melbourne University, firstly studying engineering before changing to philosophy. He graduated in 1950 and then went to England to continue his studies at Oxford University.