If businessman Mark Cuban had to start over from nothing today, he knows exactly what he would do. No, not chase trends or raise capital. He would master one foundational skill, using every available tool to accelerate it: selling. Warren Buffett on Market Volatility — and 3 Ways You Can Take Advantage Experts are Bullish on Gold — Here's How to Get In “Once you get the taste of that, and you get confident,” it becomes easy, Cuban tells Money.