Council of Trent: Session XIV, On The Most Holy Sacrament Of Penance, Canon V

ON THE MOST HOLY SACRAMENT OF PENANCE

CANON V.--If any one saith, that the contrition which is acquired by means of the examination, collection, and detestation of sins,--whereby one thinks over his years in the bitterness of his soul, by pondering on the grievousness, the multitude, the filthiness of his sins, the loss of eternal blessedness, and the eternal damnation which he has incurred, having therewith the purpose of a better life,--is not a true and profitable sorrow, does not prepare for grace, but makes a man a hypocrite and a greater sinner; in fine, that this (contrition) is a forced and not free and voluntary sorrow; let him be anathema.

Translation: J. Waterworth, The Canons and Decrees of the Council of Trent (1848), Hanover Historical Texts Project transcription (1995).