The Gallery 20th-century philosophy David Wood Richard Sylvan John Passmore John O'Neill Arne Næss J. Baird Callicott Edward Said Herbert Marcuse Michael Hardt Hans-Georg Gadamer Erich Fromm Nancy Fraser Enrique Dussel Cornelius Castoriadis Xu Fuguan Tang Junyi Mou Zongsan Xiong Shili Joseph Owens Jay Newman Ian Hacking Alan Watts Alfred North Whitehead J. O. Urmson 5 6 7 8 9 10 11 12 13