he was familiar with, ( Yeats , Eliot , Swinburne , Greene , Sartre , Beckett , Nietzsche , Camus , Heidegger , Conan-Doyle , Shaw , Poe , G.K. Chesterton , T.E. Lawrence , Blake , Balzac , Hugo , Tolstoy , Dostoyevsky , Keats , Coleridge , Cowper ,