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.

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.

People thought I was a charlatan and a nut. The doctors were against me -- they said that working out with weights would give people heart attacks and they would lose their sex drive.

I train like I'm training for the Olympics or for a Mr. America contest, the way I've always trained my whole life. You see, life is a battlefield. Life is survival of the fittest... How many healthy people do you know? How many happy people do you know? Think about it. People work at dying, they don't work at living. My workout is my obligation to life. It's my tranquilizer. It's part of the way I tell the truth--and telling the truth is what's kept me going all these years.

You see, you don't get old from age, you get old from inactivity, from not believing in something.

My goal has always been to help people help themselves. Your body is your most priceless possession; you've go to take care of it!

You put junk in, junk comes out. You put good in, good comes out.