"Many people say, "When I get a million dollars, then I'll be happy because I'll have security," but that's not necessarily so. Most people who acquire a million dollars want another and then another. Or they could be like a good friend of mine who made and lost every dime of a million dollars. It didn't bother him a bit. He wasn't excited about it, but he explained to me, "Zig, I still know everything necessary to make another million dollars, and I've learned what to do not to lost it. I'll simply go back to work and earn it again."

Source: Zig Ziglar and staying Up, Up, Up in a Down, Down, Down world by Oliver Burkeman, www.theguardian.com. December 2, 2012.