IV. (34) And these expounders of the law, having first of all laid down temperance as a sort of foundation for the soul to rest upon, proceed to build up other virtues on this foundation, and no one of them may take any meat or drink before the setting of the sun, since they judge that the work of philosophising is one which is worthy of the light, but that the care for the necessities of the body is suitable only to darkness, on which account they appropriate the day to the one occupation, and a brief portion of the night to the other; (35) and some men, in whom there is implanted a more fervent desire of knowledge, can endure to cherish a recollection of their food for three days without even tasting it, and some men are so delighted, and enjoy themselves so exceedingly when regaled by wisdom which supplies them with her doctrines in all possible wealth and abundance, that they can even hold out twice as great a length of time, and will scarcely at the end of six days taste even necessary food, being accustomed, as they say that grasshoppers are, to feed on air, their song, as I imagine, making their scarcity tolerable to them. (36) And they, looking upon the seventh day as one of perfect holiness and a most complete festival, have thought it worthy of a most especial honour, and on it, after taking due care of their soul, they tend their bodies also, giving them, just as they do to their cattle, a complete rest from their continual labours; (37) and they eat nothing of a costly character, but plain bread and a seasoning of salt, which the more luxurious of them to further season with hyssop; and their drink is water from the spring; for they oppose those feelings which nature has made mistresses of the human race, namely, hunger and thirst, giving them nothing to flatter or humour them, but only such useful things as it is not possible to exist without. On this account they eat only so far as not to be hungry, and they drink just enough to escape from thirst, avoiding all satiety, as an enemy of and a plotter against both soul and body. (38) And there are two kinds of covering, one raiment and the other a house: we have already spoken of their houses, that they are not decorated with any ornaments, but run up in a hurry, being only made to answer such purposes as are absolutely necessary; and in like manner their raiment is of the most ordinary description, just stout enough to ward off cold and heat, being a cloak of some shaggy hide for winter, and a thin mantle or linen shawl in the summer; (39) for in short they practise entire simplicity, looking upon falsehood as the foundation of pride, but truth as the origin of simplicity, and upon truth and falsehood as standing in the light of fountains, for from falsehood proceeds every variety of evil and wickedness, and from truth there flows every imaginable abundance of good things both human and divine.