The Gallery 20th-century Regina Becker-Schmidt Yang Rongguo Tsang Lap Chuen Ma Yifu L. W. Sumner Raymond Klibansky Vianney Décarie G.A. Cohen Vernon J. Bourke John Wisdom Gabriele Taylor Richard Swinburne Alan Stout Mark Sacks Karl Popper Sydney Sparkes Orr Charles Morris, Baron Morris of Grasmere John Macmurray Margaret MacDonald Anthony Ludovici John Laird Stephan Körner Martha Klein J. M. Hinton 5 6 7 8 9 10 11 12