Aristotle (c. 384-322 BCE)
“Life is a desirable thing, especially for the good, because for them existence is good and pleasant (since they feel pleasure in the consciousness of what is in itself good).”
- From The Nicomachean Ethics (Book XI, section 9, Bekker page 1170b) by Aristotle, translated by J. A. K. Thomson (Penguin Classics, 2004).