However good you may be you have faults; however dull you may be you can find out what some of them are, and however slight they may be you had better make some - not too painful, but patient efforts to get rid of them.
John RuskinIt is eminently a weariable faculty, eminently delicate, and incapable of bearing fatigue; so that if we give it too many objects at a time to employ itself upon, or very grand ones for a long time together, it fails under the effort, becomes jaded, exactly as the limbs do by bodily fatigue, and incapable of answering any farther appeal till it has had rest.
John Ruskin