Nevertheless, those who mean to win store to fill the
 covered place, have need of someone to work at the
 open-air occupations; since ploughing, sowing,
 planting and grazing are all such open-air
 employments; and these supply the needful food. 
 Then again, as soon as this is stored in the covered
 place, then there is need of someone to keep it and
 to work at the things that must be done under cover.
 Cover is needed for the nursing of the infants;
 cover is needed for the making of the corn into
 bread, and likewise for the manufacture of clothes
 from the wool.