I have kept His way and have not turned aside from it (Job 23:11)
And now this is the concern of the just, that they examine their acts daily in accord with the ways of truth and, placing those ways on themselves as a rule, do not turn aside from the path of their rightness. For they strive daily to go above themselves and when they are borne to the pinnacle of virtues they judge with careful indictment whatever of themselves remains below themselves, and they hasten to drag their whole selves to that place where they find they have arrived only in part.
St. Gregory the Great, Moralia in Job 16.42 (my translation)
Teaching Boys Badly 