“AT SOME POINT, TOM, YOU’RE GOING TO HAVE TO COME UP FOR BREATH. It could be now or in 10 years, 20 years, or 30 years... but you will have to take stock and think about your legacy. The most unselfish thing you can do with your life is to plant a walnut tree, because you won’t see it fruit for many years – you’re invest- ing for the future.”