Never place friendship before profit. A wise man can hear profit in the wind. Never make fun of a Ferengi's mother. It never hurts to suck up to the boss. War is good for business.
Peace is good for business.
Never trust anyone whose suit is nicer than your own. The bigger the smile, the sharper the knife. Never ask when you can take. Free advice is seldom cheap. The riskier the road, the greater the profit.