Positive thinking is more than just a tagline. It changes the way we behave. And I firmly believe that when I am positive, it not only makes me better, but it also makes those around me better.
When you waste a moment, you have killed it in a sense, squandering an irreplaceable opportunity. But when you use the moment properly, filling it with purpose and productivity, it lives on forever.
Don't ask yourself what the world needs; ask yourself what makes you come alive. And then go and do that. Because what the world needs are people who have come alive.