32. Since these things are so, and we have been taught by the greatest teacher that souls are set not far from the gaping [3616] jaws of death; that they can, nevertheless, have their lives prolonged by the favour and kindness of the Supreme Ruler if only they try and study to know Him,--for the knowledge of Him is a kind of vital leaven [3617] and cement to bind together that which would otherwise fly apart,--let them, [3618] then, laying aside their savage and barbarous nature, return to gentler ways, that they may be able to be ready for that which shall be given. [3619] What reason is there that we should be considered by you brutish, as it were, and stupid, if we have yielded and given ourselves up to God our deliverer, because of these fears? We often seek out remedies for wounds and the poisoned bites of serpents, and defend ourselves by means of thin plates [3620] sold by Psylli [3621] or Marsi, and other hucksters [3622] and impostors; and that we may not be inconvenienced by cold or intense heat, [3623] we provide with anxious and careful diligence coverings in [3624] houses and clothing.