Authors with Philosopher Profession Owen Barfield philosopher Otto Weininger philosopher Otto Neurath philosopher Oswald Spengler philosopher Larry Sanger philosopher Larry Laudan philosopher Omar Khayyam philosopher Laozi philosopher Lanza del Vasto philosopher Olavo de Carvalho philosopher Olaf Stapledon philosopher Ogyu Sorai philosopher Marjorie Grene philosopher Marshall Berman philosopher Mary Hesse philosopher Mustafa Mahmud philosopher Mulla Sadra philosopher Muhammad Iqbal philosopher Moses Mendelssohn philosopher Moses Hess philosopher «910111213141516171819»