Nietzsche: The Man and his Philosophy (London, 1964); and Arthur C. Danto,

Nietzsche as

(New York, 1965). See also Keith Ansell Pearson,

Nietzsche (London, 2005), and Michael Tanner,

Nietzsche (Oxford). A more substantial study is Richard Schacht,

Nietzsche (London, 1983). (4) فيتجنشتاين

The

Tractatus Logico-Philosophicus , first published in London in 1961, is available in abridged form in Anthony Kenny (ed.),

The Wittgenstein Reader (Oxford, 1994). See also Wittgenstein’s

, trans. G. E. M. Anscombe (Oxford, 1953), and

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