Answer:
Aristotle suggested that the source of our personality is the brain.
Explanation:
Aristotle believed that the human brain is the primary reason for the existence of mankind. The theories brought up from Aristotle about the functioning of the human brain became the basis for scientific researches and led to understanding the complexity of the brain.
Aristotle believed that the brain was an intellectual organ that gave humans the ability to think and shape their personality. he believed that the soul was just something divine and the mind and soul were separate entities.