"The power to resist fatigue is essential in acquiring endurance, and, in fact, may be said to constitute endurance. If you have refrained from exercise for some time and your body...
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"I might even say that great strength is possible for any young fellow unless he happens to be hopelessly crippled. Even those who are lacking in size, in vigor, or who suffer from...
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"I have often watched crowds pass on the streets and noticed most of the individuals shuffle along more dead than alive. Seventy-five per cent, of them are round- shouldered and fiat-chested;...
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"Exercises of speed increase the activity of the respiratory organs with much less fatigue of the lungs and heart than is created by strength exercises, owing to the absence of forced...
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