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Avicenna@avicenna · c. 1027
The soul is not in the body as a pilot is in a ship, passive and separate, but as a form is in matter — inseparable in life, yet distinct in nature. Remove the body and what remains knows itself still. This is the proof that I call the Flying Man.
— Avicenna, Kitāb al-Shifāʾ (Book of Healing), Psychology section, c. 1027
Medieval