Full Idea
Is it with the blood that we think, or with the air or the fire that is in us? Or is it none of these, but the brain that supplies our senses of hearing and sight and smell.
Gist of Idea
Do we think and experience with blood, air or fire, or could it be our brain?
Source
Plato (Phaedo [c.374 BCE], 097a)
Book Reference
Plato: 'The Last Days of Socrates', ed/tr. Tredennick,Hugh [Penguin 1969], p.153
A Reaction
In retrospect it seems surprising that such clever people hadn't worked this one out, given the evidence of anatomy, in animals and people, and given brain injuries. By the time of Galen they appear to have got the answer.