“I distinctly remember him saying not to worry about what I was going to do because the job I was going to do hadn’t even been invented yet. . . . The interesting jobs are the ones that you make up. That’s something I certainly hope to instill in my son: Don’t worry about what your job is going to be. . . . Do things that you’re interested in, and if you do them really well, you’re going to find a way to temper them with some good business opportunity.”