My job was basically to be a delivery boy for all kinds of things, but they also — because I was at Georgetown and studying international affairs, I was assigned to read six newspapers a day and clip the most relevant articles. This is the technology we used. You couldn’t scan articles. There was no “online.” There was nothing, right? So I would read the newspapers, clip the articles I thought they ought to read, put them on a routing slip, which had on it the names of the senior staff of the committee and all the senators who were committee members. And I would send it to the senior staff, and they would decide whether to send any of them on, but I don’t think I’d have won a Rhodes Scholarship if I hadn’t been a clerk on the Foreign Relations Committee. Nobody else I was competing with read six newspapers a day, and they actually paid me good money to read The Washington Post, The New York Times, The Washington Star, which existed then, The Baltimore Sun , The St. Louis Post Dispatch , and then we alternated — and — oh, and The Wall Street Journal . We read them every day. Those were the six papers we read. I did, and then that’s what the senators got.

I think chess — actually, a number of things that I learned when I was young — it wasn't so much the chess itself; it was the skills that you were training while you were playing chess. So problem-solving, imagination, creative thinking, strategic thinking, all of these things — if you play chess to a high level, what you're really honing is those meta-skills. And I realized from quite young, that's one of the reasons I liked chess was this is a great practice for me to get good — sort of like a mental gym, if you like — to get really good at those other skills, which you could then translate to all sorts of other subjects like science or business.

Remember, if you sit at your desk for 15 or 20 years, every day, not ­counting weekends, it changes you. It just does. It may not improve your temper, but it fixes something else. It makes you more free.

I never wanted to be a businessman. I started as a craftsman, making climbing gear for my friends and myself, then got into apparel. As we began to witness the extent of global warming and ecological destruction, and our own contribution to it, Patagonia committed to using our company to change the way business was done. If we could do the right thing while making enough to pay the bills, we could influence customers and other businesses, and maybe change the system along the way.

But I'm ready for what's next after rugby. Being able to not just say that, but to truly feel it, is a privilege. Ultimately, getting to leave your sport on your own terms is all you can really hope for as an athlete.