Fr. Hardon on mortal sin

No doubt, one reason for this sad state of affairs is the prevalence of some wild theories about mortal sin. For example, the Fundamental Option theory claims that no mortal sin is committed unless a person totally rejects God. Who but the devil hates God? One adultery or one abortion is not a mortal sin. On these grounds, there are parishes in which almost no one goes to Confession. - The Spiritual and Psychological Value of Frequent Confession 

There is no hatred more cruel, no treachery more demonic than that of an unrepentant sinner. Thirty-seven years in the priesthood have taught me many things none more clearly than that.  - Fr. Hardon

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