It is monstrous for one to live in luxury while many are in want. - Clement of Alexandria

How can it not be necessary, for him who wishes to lay hold of the power of God, to philosophise and to grasp with comprehension intellectual concepts?

All possessions are by nature unrighteous when a man possesses them for personal advantage as being entirely his own, and does not bring them into the common stock for those in need.

Cultivate quietness in word, quietness in deed, likewise in speech and gait; and avoid impetuous eagerness, for then the mind will remain steady, and will not be agitated by your eagerness. ... For the mind, seated on high on a quiet throne looking intently towards God, must control the passions, ... so that your quietness may be adorned by good proportion and your bearing may appear something divine.