Humility consists in…

Humility consists in considering oneself to be nothing in all circumstances, cutting off one’s will in all things, accusing oneself of everything, and bearing without confusion that which befalls him from without. Such is true humility, in which vainglory finds no place. A humble man doesn’t need to try to show his humility in words, nor does he need to make himself do humble deeds, for both of these lead to vainglory, hinder progress, and cause more harm than good. But when they command anything, it is necessary not to contradict, but to fulfill it with obedience. This is what leads to success.
— Saint John the Prophet (Sixth Century)