The Gallery Metaphysics Alfred North Whitehead Alfred Edward Taylor P. F. Strawson Galen Strawson George Stout Mary Shepherd Thomas Reid Hastings Rashdall Anthony Quinton, Baron Quinton Graham Priest Karl Popper David Papineau William of Ockham Stephen Neale George Edward Moore Bryan Magee J. L. Mackie Anthony Ludovici Rae Helen Langton John Laird Stephan Körner John Foster Francis Hutcheson Paul Horwich 12 13 14 15 16 17 18 19