Let no man seek his own, but every man another's wealth.
Let no one then seek his own good and advantage and profit, but [rather] each one of the other [let him seek the welfare of his neighbor].
Let no man seek his own, but each his neighbor’s good.
No one should look out for their own advantage, but they should look out for each other.
Let no one seek for himself, but for others.
Let no man seek his own, but that which is another's.