To abstain from sin when one can no longer sin is to be forsaken by sin, not to forsake it.

Thou must be emptied of that wherewith thou art full, that thou mayest be filled with that whereof thou art empty.

To wisdom belongs the intellectual apprehension of things eternal; to knowledge, the rational apprehension of things temporal.

This is the very perfection of a man, to find out his own imperfections.