Now this class of persons may be met with in many places, for it was fitting that both Greece and the country
 B. xiii. 5. 
 
of the barbarians should partake of whatever is perfectly good; and there is the greatest number of such men in Egypt, in every one of the districts, or nomi as they are called, and especially around Alexandria; and from all quarters those who are the best of these therapeutae proceed on their pilgrimage to some most suitable place as if it were their country, which is beyond the Mareotic lake, lying in a somewhat level plain a little raised above the rest, being suitable for their purpose by reason of its safety and also of the fine temperature of the air.
 For the houses built in the fields and the villages which surround it on all sides give it safety; and the admirable temperature of the air proceeds from the continual breezes which come from the lake which falls into the sea, and also from the sea itself in the neighbourhood, the breezes from the sea being light, and those which proceed from the lake which falls into the sea being heavy, the mixture of which produces a most healthy atmosphere.
 But the houses of these men thus congregated together are very plain, just giving shelter in respect of the two things most important to be provided against, the heat of the sun, and the cold from the open air; and they did not live near to one another as men do in cities, for immediate neighbourhood to others would be a troublesome and unpleasant thing to men who have conceived an admiration for, and have determined to devote themselves to, solitude; and, on the other hand, they did not live very far from one another on account of the fellowship which they desire to cultivate, and because of the desirableness of being able to assist one another if they should be attacked by robbers.
 And in every house there is a sacred shrine which is called the holy place, and the monastery in which they retire by themselves and perform all the mysteries of a holy life, bringing in nothing, neither meat, nor drink, nor anything else which is indispensable towards supplying the necessities of the body, but studying in that place the laws and the sacred oracles of God enunciated by the holy prophets, and hymns, and psalms, and all kinds of other things by reason of which knowledge and piety are increased and brought to perfection.