There are three things extremely hard: steel, a diamond, and to know one's self.
To err is human, to repent divine; to persist devilish.
Trusting too much to others care is the ruin of many.
We are a kind of posterity in respect to them.
It is a strange anomaly that men could be careful to insure their houses, their ships, their merchandise, and yet neglect to insure their lives - surely the most important of all to their families, and more subject to loss.
Doing your best means never stop trying.