Gain not base gains; base gains are the same as losses.

And Zeus will destroy this race of mortal men too, when they, at their birth, have grey hair on their temples.

But they who give straight judgements to strangers and to those of the land and do not transgress what is just, for them the city flourishes and its people prosper.

...Perses, hear me out on justice, and take what I have to say to heart; cease thinking of violence. For the son of Kronos, Zeus, has ordained this law to men: that fishes and wild beasts and winged birds should devour one another, since there is no justice in them; but to mankind he gave justice which proves for the best.

He's only harming himself who's bent upon harming another

Admire a small ship, but put your freight in a large one; for the larger the load, the greater will be the profit upon profit.

Do not get a name as overly lavish or too inhospitable.