It's not the fat that's making you fat: it's not understanding separating carbohydrates from protein and fat.

Think about it - just getting rid of the fat doesn't get rid of the toxins, which are reabsorbed into your body. This creates a vicious cycle. Losing weight without learning to eliminate chemicals is like a merry-go-round. And it's why dieting doesn't work.

Artificial sweeteners may trigger cravings for other sweet foods. When your body is not fed nutrients, it asks again and again for more food, triggering heavy-duty cravings for fattening, sugary foods. Artificial sweeteners also mess with your metabolism.

From middle age on, there's nothing more vital to your health and weight control than building lean muscle mass, and the only way that happens is with weight training and exercise.

Sustainable development is the pathway to the future we want for all. It offers a framework to generate economic growth, achieve social justice, exercise environmental stewardship and strengthen governance.

Anything to do with children, sign me up! I work a lot with St. Jude's Children's Hospital, which is an incredible hospital in Memphis that treats children with cancer for no charge whatsoever, including the families' lodging and all of their bills.

We also learn that this country and the Western world have no monopoly of goodness and truth and scholarship, we begin to appreciate the ingredients that are indispensable to making a better world. In a life of learning that is, perhaps, the greatest lesson of all.

When you're younger, you're trying to understand and make sense of what your parents are trying to instill in you, which is ultimately life experience. I remember being 17 and my dad trying to teach me the importance of responsibility.