George Macdonald said this quote
“ Never pupil was more humble, never pupil more obedient; thinking nothing of himself or of anything he had done or could do, his path was open to the swiftest and highest growth. It matters little where a man may be at this moment; the point is whether he is growing. The next point will be, whether he is growing at the ratio given him. The key to the whole thing is _obedience_, and nothing else. ”