Around his time, Islamic philosophy, and the post-hellenic world, was mainly divided into two opposing branches of thoughts. The Eastern branch, which was led by Ibn Sina, known as Avicenna in Latin, and the Western branch, which was led by Ibn Bajjah. Avempace's work in philosophy is seen as uneven and mostly incomplete, but what parts of his work that survive to this day demonstrates originality in his thought process. His main philosophical work is the unfinished politico-ethical treatise Governance of the Solitary.