“Nothing is miserable but what is thought so, and contrariwise, every estate is happy if he that bears it be content.”
Adeo nihil est miserum nisi cum putes, contraque beata sors omnis est aequanimitate tolerantis.
Anicius Manlius Severinus Boethius (480) philosopher of the early 6th century
Prose IV, line 18
The Consolation of Philosophy · De Consolatione Philosophiae, Book II