One of his works begins by laying out the four causes, four elements, four temperaments, and the four humors.
This philosopher posited that the ability to sense an intention comes from an "estimative" faculty, situated in the middle ventricle of the brain. Following his teacher, this philosopher based his logic on abstractions from real things called "secondary intelligibles." He famously proved that essence is prior to existence, and that only God's essence is existence. This philosopher demonstrated the soul's separability from the body by noting that a man with no (*) sensory input could still be aware of his own existence. One of his works begins by laying out the four causes, four elements, four temperaments, and the four humors. His Aristotelianism was attacked along with that of Al-Farabi in Al-Ghazali's Incoherence of the Philosophers. For 10 points, name this creator of the "Falling Man" thought experiment and author of The Canon of Medicine and The Book of Healing, an eleventh-century Persian philosopher of the Islamic Golden Age.
This philosopher posited that the ability to sense an intention comes from an "estimative" faculty, situated in the middle ventricle of the brain.
Avicenna [or Ibn-Sina; or Abu 'Ali al-Husayn ibn Abd Allah ibn Al-Hasan ibn Ali ibn Sina] 