From The Epicurean Dealmaker:
... Rule #4 — It’s all about the money....MORE
It is absolutely, without question, unequivocally about the money. Anyone who says otherwise is a liar, a regulator, an MBA career counselor, or Matt Taibbi.2
Rule #5 — Harden The Fuck Up.
If you forget every other rule, remember this one.
Rule #6 — Free your mind, and your career will follow.
You are not paid to think. You are not that fucking smart. You are paid to do what the client wants you to do. Go do it. The time to add real insight, to offer careful, considered judgment, is before you get hired. Then, and only then, can you tell the client what you think they should do.3 After they hire you, they own your sorry ass. Apply your overwhelming intellect to how and when to achieve their objectives, not why.
Rule #7 — Dress like a professional, not like a clown.
Wear a suit. Buy good shoes. Own more than six ties. I don’t care what your clients wear, they expect you to look the part of a slick, overeducated, hyperaggressive, insanely successful mercenary. Bulletin: the clients who wear blue jeans and sneakers expect their bankers to be dressed to the nines, too, not like themselves, because they instinctively know the difference between an entrepreneur and a professional servant. You are a servant. Dress like one. Oh, and one thing more: no two-tone shirts, banker collars, suspenders, or bowties, unless you are God, a bajillionaire, or Felix Rohatyn. Or all of the above. Nobody wants to hire a fop....