The appetites darken and blind a person 1. The third kind of harm the appetites bring upon a person is blindness and darkness. Vapors make the air murky and are a hindrance to the bright sunshine; a cloudy mirror does not clearly reflect a person’s countenance; so too muddy water reflects only a hazy image of one’s features. In just this way a person’s intellect, clouded by the appetites, becomes dark and impedes the sun of either natural reason or God’s supernatural wisdom from shining
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