The Twelve Books on the Institutes of the Cœnobia, and the Remedies for the Eight Principal Faults

Wherefore except that sorrow which is endured either for the sake of saving penitence, or for the sake of aiming at perfection, or for the desire of the future, all sorrow and dejection must equally be resisted, as belonging to this world, and being that which “worketh death,” and must be entirely expelled from our hearts like the spirit of fornication and covetousness and anger.