The brain's preferred source of fuel is glucose/carbohydrates. And when you go on a low-carb/high-protein diet, your brain is using low-octane fuel. You'll be a little groggy, a little grumpy.

I have spoken to a whole group of millionaires, head executives at Microsoft. Boy did I chew those guys out.

People will set a New Year's resolution: "I'm gonna get in shape this year." But they don't set a parameter for how they're gonna measure it. Or if they do measure it, they wait until the first day of the next year. You'd never run a business that way. Document your progress.

Focus on your problem zones, your strength, your energy, your flexibility and all the rest.

Invest in yourself now and reap the dividends day after day after month after year.

Be young. Keep yourself young by having a good, sporty car like a Corvette. It keeps you on your toes. It keeps you young. It keeps you thinking young. It keeps you thinking modern and good things. Corvette is a modern, modern automobile.

If you're tired and pooped out all the time, do you have love and compassion in your heart for your fellow man? You don't even like yourself!