I'd tell them to found their own company if their goal is to be a CEO, I wouldn't sugar coat it and tell them if they just work hard they can make it to the top. Since if you are short or if you are black, even if your the better candidate, you will be passed over. You probably won't even make it to VP level. Not to say you can't be successful, but the C-level and board membership is a club not dictated by performance or ability, but whose vag you dropped out of and how tall you grew to be. That's how it really is.