The passions of the incensive faculty are anger, animosity, shouting, bad temper, self-assertion, conceit, boastfulness, and so on. The passions of the appetitive faculty are greed, licentiousness, dissipation, insatiateness, self-indulgence, avarice and self-love, which is the worst of all. The passions of the flesh are unchastity, adultery, uncleanliness, profligacy, injustice, gluttony, listlessness, ostentation, self-adornment, cowardice and so on. The passions of the intelligence are lack of faith, blasphemy, malice, cunning, inquisitiveness, duplicity, abuse, backbiting, censoriousness, vilification, frivolous talk, hypocrisy, lying, foul talk, foolish chatter, deceitfulness, sarcasm, self-display, love of popularity, day-dreaming, perjury, gossiping and so on. The passions of the intellect are self-conceit, pomposity, arrogance, quarrelsomeness, envy, self-satisfaction, contentiousness, inattentiveness, fantasy, fabrication, swaggering, vainglory and pride, the beginning and end of all the vices. The passions of the reason are dithering, distraction, captivation, obfuscation, blindness, abduction, provocation, connivance in sin, bias, perversion, instability of mind and similar things. In short, all the unnatural vices commingle with the three faculties of the soul, just as all the virtues naturally coexist within them.
~St Gregory of Sinai