56. Self-love, as has often been said, is the cause of all impassioned thoughts. For from it are produced the three principal thoughts of desire; those of gluttony, avarice and self-esteem. From gluttony is born the thought of unchastity; from avarice, the thought of greed; from self-esteem, the thought of pride. All the rest - the thoughts of anger, resentment, rancor, listlessness, envy, backbiting and so on - are consequent upon one or other of these three. These passions, then, tie the intellect to material things and drag it down to earth, pressing on it like a massive stone, although by
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