Yes, and let us remember one of the more entertaining philosophical debates in history:
"The Incoherence of the Philosophers" (al-Ghazali)
answered by........
"The Incoherence of the Incoherence" (Ibn Rushd, aka Averroes)
http://en.wikipedia.org/wiki/The_Incoherence_of_the_Philosophers
(As a coherent philosopher, she was on the side of Averroes. :)