Optimism doesn't need to be naive. You can be an optimist and still recognize that problems exist and that some of them are not dealt with easily. But what a difference optimism makes in the attitude of the problem solver! For example, through the years I've heard some people say that the money spent on our space program has been wasted. "Instead of spending $455 million to put a man on the moon," they say, "why not spend that money here on earth on the poverty problem?" But when you ask them exactly how they would spend that money to solve the poverty problem, most of them don't have an answer. "Give me a solution," I tell them, "and I'll raise you the money." Think in positive terms about how to address the issue rather than criticizing money spent on another program, such as America's space program, which has resulted in many positive discoveries that have benefited mankind.