Of Penance as a Virtue

We must now consider penance as a virtue, under which head there are six points of inquiry:(1) Whether penance is a virtue?(2) Whether it is a special virtue?(3) To what species of virtue does it belong?(4) Of its subject;(5) Of its cause;(6) Of its relation to the other virtues.

Articles list

Whether Penance is a virtue?
Whether Penance is a special virtue?
Whether the virtue of penance is a species of justice?
Whether the will is properly the subject of penance?
Whether penance originates from fear?
Whether penance is the first of the virtues?