Winning a fight most often requires more brain than brawn. Take a cue from what Donald Trump has to say about winning.

The Donald

Donald Trump, real-estate tycoon

I don't give up, and I don't give in--ever. I am extremely tenacious. I've waited for 30 years for some things to happen, so I'm also patient. I can wear out my adversaries just by focusing and being stubborn to an extent that they won't or can't fathom. BusinessWeek just voted me the number one most competitive businessperson in the world. Those are a few of the reasons why.

The takeaway: Giving ground can become a habit.