On contentment
Enough
It is not the man who has too little, but the man who craves more, that is poor.
If enough keeps moving, more can never bring rest.
Sources
Seneca · Moral Letters to Lucilius 2.6
Richard M. Gummere translation.
Seneca challenges unlimited craving and comparison. This is not a denial of material hardship or the need for adequate food, shelter, and security.