He’s writing a terrificly inspiring series on Career Planning. In case you don’t know who Marc Andreessen is, he is the man behind Netscape and Ning. If you haven’t seen it yet, head over to his first part: “The Pmarca Guide to Career Planning, part 1: Opportunity.”

“The world is an incredibly complex place and everything is changing all the time. You can’t plan your career because you have no idea what’s going to happen in the future. You have no idea what industries you’ll enter, what companies you’ll work for, what roles you’ll have, where you’ll live, or what you will ultimately contribute to the world. You’ll change, industries will change, the world will change, and you can’t possibly predict any of it.”