It is one who is by himself, without a second, and without son or brother; but there is no end to all his work, and he has never enough of wealth. For whom, then, am I working and keeping myself from pleasure? This again is to no purpose, and a bitter work.

And if one has a fall, the other will give him a hand; but unhappy is the man who is by himself, because he has no helper.

So again, if two are sleeping together they are warm, but how may one be warm by himself?

He who makes a hole for others will himself go into it, and for him who makes a hole through a wall the bite of a snake will be a punishment.