Pain will force even the truthful to speak falsely.
Look for a tough wedge for a tough log.
He who gets the better of an irascible temperament conquers his worst enemy.
A good opportunity is seldom presented, and is easily lost.
The timid man calls himself cautious, the sordid man thrifty.
When a woman is undisguisedly bad, then indeed she is good. [Comparatively speaking, as she at least lacks deception.]