Ever since boyhood I've made a religion of keeping in shape by regular, conscientious exercise.

Normally, I could hit hard enough, as anyone who studied my fights might have known. But the impression was that I was essentially defensive, the very reverse of a killer, the prize fighter who read books, even Shakespeare.

Many complain of a chronic weariness that sleep will not banish. Their trouble is that too little blood is pumped through the body per minute; this sluggishness, permitting poisonous waste matter to accumulate in every cell, clogs the channels of energy.

I did six years of planning to win the championship from Jack Dempsey.

Exercise should be regarded as tribute to the heart.

Never eat less than four hours before boxing. Then eat only lightly.

But I do say that, if you will regularly devote 15 minutes a day, preferably before breakfast, for 60 days to the simple set of exercises that I devised for conditioning men in the navy, I guarantee that you will enjoy increased physical buoyancy and mental vigor.