Jean-François Lyotard
Bracha L. Ettinger, retouched by <a href="//commons.wikimedia.org/wiki/User:AlMare" title="User:AlMare">AM</a> (<a href="//commons.wikimedia.org/wiki/User_talk:AlMare" title="User talk:AlMare"><span class="signature-talk">talk</span></a>)
CC BY-SA 2.5
Bracha L. Ettinger