Source : Webster's Revised Unabridged Dictionary (1913)

Philosophize \Phi*los"o*phize\, v. i. [imp. & p. p.
   {Philosophized}; p. pr. & vb. n. {Philosophizing}.]
   To reason like a philosopher; to search into the reason and
   nature of things; to investigate phenomena, and assign
   rational causes for their existence.

         Man philosophizes as he lives. He may philosophize well
         or ill, but philosophize he must.        --Sir W.
                                                  Hamilton.

Source : WordNet®

philosophize
     v : reason philosophically [syn: {philosophise}]