As for a slogan, your question demonstrates the VERY mindset that has brought such disapproval and distrust to investment banking and Wall Street in past years. Plucking some fancy saying to impress people without any genuine commitment or substance behind it is cynical, manipulative, and ultimately dishonest.
I don’t think you realized that when you posted your question, but now you should think about it.

Ethics, substance and principles have become suddenly a hot set of commodities in finance. The “Reagan Revolution” epitomized in Michael Douglas’ famous movie line, “Greed is good!” is now officially over, dead and disgusting.

Don’t advertise your beginner’s status by putting a “BA” or “BS” behind your name on the cards. Don’t advertise your complete lack of business subtlety or (I hope this isn’t true) your lack of character by using some meaningless slogan. Stick to the purpose of the cards – to give folk an easy way to remember you and get back in touch if you survive the first interview.

You aren’t printing BUSINESS cards, friend. You are printing CALLING cards. When you get a JOB, the company will supply your business cards!

Good luck.