“On me personally what has been the most important was to understand the value of time -- and this is something that has come from observing him, learning his story and that time compounds. What you do when you are young (and as you use time over your life) can have an exponential effect so that if you are thoughtful about it, you can really have powerful results later, if you want to. Also, that is a reason to be hopeful, because compounding is something that happens pretty quickly. If you are 50 or 60, it is not too late. He said to me one time, if there is something you really want to do, don't put it off until you are 70 years old. ... Do it now. Don't worry about how much it costs or things like that, because you are going to enjoy it now. You don't even know what your health will be like then. On the other hand, if you are investing in your education and you are learning, you should do that as early as you possibly can, because then it will have time to compound over the longest period. And that the things you do learn and invest in should be knowledge that is cumulative, so that the knowledge builds on itself. So instead of learning something that might become obsolete tomorrow, like some particular type of software [that no one even uses two years later], choose things that will make you smarter in 10 or 20 years. That lesson is something I use all the time now.”