O yes; when several are
 jointly interested in money, it is pleasant to have
 no disagreement in going over the accounts; and it
 is equally pleasant for us, as the interested
 parties in a discussion, to agree as we go over the
 several steps. Well now, we thought that
 estate management is the name of a branch of
 knowledge, and this knowledge appeared to be that by
 which men can increase estates, and an estate
 appeared to be identical with the total of one’s
 property, and we said that property is that which is
 useful for supplying a livelihood, and useful things
 turned out to be all those things that one knows how
 to use.