Sloth is sluggishness of the mind which neglects to begin good...it is evil in its effect, if it so oppresses man as to draw him away entirely from good deeds.
Thomas AquinasA song is the exultation of the mind dwelling on eternal things, bursting forth in the voice.
Thomas AquinasIt [covetousness] is a sin against God, just as all mortal sins, in as much as man condemns things eternal for the sake of temporal things.
Thomas AquinasEvery judgement of conscience, be it right or wrong, be it about things evil in themselves or morally indifferent, is obligatory, in such wise that he who acts against his conscience always sins.
Thomas Aquinas