Aristotle (c. 384-322 BCE)
“Life is in itself good and pleasant (as appears from the fact that it is sought after by all, especially by those who are virtuous and truly happy, because their life is in the highest degree desirable, and their existence the truest felicity).”
- From The Nicomachean Ethics (Bekker page 1170a) by Aristotle, translated by J. A. K. Thomson (Penguin Classics, 2004).