Man is the only animal that develops them,
and they are not brought about by ordinary circumstances. Once acquired,
they prove a burden, for they demand much daily work to be kept in
condition.
Good muscles are more serviceable than extraordinary ones. Vigorous
exercise is better than violent exercise. It is well known that many of
our picked athletes, men with great original physical endowment, die
young. The reason is that they have either been overdeveloped, or at
some time they have overtaxed their bodies so in a supreme effort at
vanquishing their opponents that a part of the vital mechanism has been
seriously affected. Then when they settle down to business life they
fail to take good care of themselves and they degenerate rapidly.
Exercising should not be a task, for then it is work. It should be of a
kind that interests and pleases the individual, for then it is
accompanied by that agreeable mental state from which great good will
come to the body. It is necessary for us to think enough of our bodies
to supply them with the activity needed for their welfare and we should
do this with good grace.
Exercise enough to bring the various muscles into play and the heart
into vigorous action.
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