Moral Failure

Repeated moral failure has at least this salutary effect: it teaches us to be humble.  Moral success can have the opposite effect of conducing toward spiritual pride — which undermines the very success of which it is the upshot.  So, while regretting one's failures, one can derive a little consolation from the realization that they are contributing to one's humility.

On Praise

We do not like to be praised if (a) the praiser is beneath us; (b) what is praised is something insignificant or common; (c) the praise is insincere, perhaps by having an ulterior motive; (d) the praise is mistaken in that we lack the excellence attributed to us.

Particularly annoying is to be praised for something insignificant while one's actual virtues go unappreciated. So be careful in your bestowal of praise: take care that you do not offend the one you hope to flatter.