 The historical importance of Cook Wilson’s influence ought not to be underestimated. In his obituary, H. W. B. Joseph described him as being “by far the most influential philosophical teacher in Oxford”, adding that no one had held a place so important since T. H. Green (Joseph 1916b, 555). This should be compared with the claim that in the 1950s Wittgenstein was “the most powerful and pervasive influence” (Warnock 1958, 62). The ‘realist’ reaction against British Idealism at the turn of the 20th century was at any rate not confined to the well-known rebellion of G. E. Moore and Bertrand Russell at Cambridge. There were also ‘realisms’ sprouting in Manchester (with Robert Adamson and Samuel Alexander), and in Oxford too, where Thomas Case had already argued for realism in Physical Realism (Case 1888) (Marion 2002b), although it is clearly Cook Wilson’s influence that swayed Oxford away from idealism. Since he published so little, it is therefore mainly through teaching and personal contact that he made a significant impact on Oxford philosophy, not only through the peculiar tutorial style to which generations of ‘Greats’ students were subjected—as described in Walsh (2000) or Ackrill (1997, 2–5)—but also through meetings that he initiated, which were to become the ‘Philosophers’ Teas’ under Prichard’s tutelage, the ‘Wee Teas’ under Ryle’s and ‘Saturday Mornings’ under Austin’s.