 | Oskar Kraus was a Czech philosopher and jurist. more » |
 | Oskar Negt is a philosopher and social theorist in the tradition of critical theory. He is... more » |
 | Nur Ali Elahi was a spiritual thinker, musician and jurist who dedicated his life to... more » |
| José Luis Osvaldo Lira Pérez SS.CC. was a Chilean priest, philosopher and theologian. Author of... more » |
| Oswald Hanfling was a German philosopher who worked until his death at the Open University in... more » |
 | Oswald Arnold Gottfried Spengler was a German historian and philosopher of history whose... more » |
| Otfried Höffe is a German philosopher and professor. From 1964 to 1970, he studied philosophy,... more » |
| Othmar Spann was a conservative Austrian philosopher, sociologist and economist whose radical... more » |
 | Otto Bauer was an Austrian Social Democrat who is considered one of the leading thinkers of the... more » |
| Otto Friedrich Gruppe was a German philosopher, scholar-poet and philologist who served as... more » |
 | Otto Liebmann was a German philosopher. more » |
 | Otto Mencke was a 17th-century German philosopher and scientist. He obtained his doctorate at... more » |
 | Otto Neurath was an Austrian philosopher of science, sociologist, and political economist... more » |
 | Otto Friedrich von Gierke was a German lawyer and historian. In his four volume magnum opus... more » |
 | Otto Walper was a German theologian and philosopher. Otto Walper was born in Rotenburg an der... more » |
 | Otto Weininger was an Austrian philosopher. In 1903, he published the book Geschlecht und... more » |
 | Owen Barfield was a British philosopher, author, poet, and critic. Barfield was born in London... more » |
 | Owen Flanagan is the James B. Duke Professor of Philosophy and Professor of Neurobiology at Duke... more » |
| The Oxford Calculators were a group of 14th-century thinkers, almost all associated with Merton... more » |
