Al-Ghazali

1058 – 1111 · Tus, Persia · Sufism

The jurist who dismantled certainty, resigned Baghdad's finest teaching post, and rebuilt knowledge from direct experience.

Core ideas

  • Sense-perception and reason both deceive; certainty needs another ground
  • Philosophy's demonstrations cannot prove what they claim
  • Skepticism honestly followed can end in trust, not despair

Historical context

His crisis of 1095 — he could no longer trust his own teaching — led to a decade of wandering and a book that anticipated Descartes' methodic doubt by five centuries.

Key works

Deliverance from Error · Incoherence of the Philosophers

Questions they speak to

Minds in conversation

Sources

  • Stanford Encyclopedia of Philosophy — Al-Ghazali