No one can lead a happy life, or even one that is bearable, without the pursuit of wisdom, and that the perfection of wisdom is what makes the happy life, although even the beginnings of wisdom make life bearable. Yet this conviction, clear as it is, needs to be strengthened and given deeper roots through daily reflection; making noble resolutions is not a important as keeping the resolutions you have made already.
Seneca the YoungerWhat difference does it make how much there is laid away in a man's safe or in his barns, how many head of stock he grazes or how much capital he puts out at interest, if he is always after what is another's and only counts what he has yet to get, never what he has already. You ask what is the proper limit to a person's wealth? First, having what is essential, and second, having what is enough.
Seneca the Younger