We are so vain that we even care for the opinion of those we don't care for.
Those who know nothing must believe everything.
There are more truths in a good book than its author meant to put in it.
Exceptions are not always the proof of the old rule; they can also be the harbinger of a new one.
The poor never estimate as a virtue the generosity of the rich.
Distrust your judgment the moment you can discern the shadow of a personal motive in it.