The mind unlearns with difficulty what it has long learned.
Levity of behavior is the bane of all that is good and virtuous.
No man can live happily who regards himself alone, who turns everything to his own advantage. Thou must live for another, if thou wishest to live for thyself.
The most onerous slavery is to be a slave to oneself.
The first and greatest punishment of the sinner is the conscience of sin.
Virtue is that perfect good, which is the complement of a happy life; the only immortal thing that belongs to mortality.