Aristotle (c. 384-322 BCE)
“The man who thinks that he is worthy of great things although he is not worthy of them is conceited; but not everybody is conceited who has too high an opinion of his own worth.”
- From The Nicomachean Ethics (Bekker number 1123b) by Aristotle, translated by J. A. K. Thomson (Penguin Classics, 2004).
