For you must keep in mind that the shedding of Our Lord's blood and the sacrifice of His life were just as necessary to wipe out venial sin as to deliver you from mortal sin. Remember that anyone who attaches little importance to venial sin will soon fall into mortal sin. If you do not find these resolutions in you own soul, pray to Our Lord to put them there, and do not rest until you possess these dispositions. For you ought to know that as long as you do not have the will to die or suffer every kind of disgrace and torture rather than commit any sin, you are not a true Christian.
--St. John Eudes, The Four Foundations of Sanctity
