Making Easy Exercises Difficult – Strength Magazine – November, 1924

In looking at it from the point of view of this article, there are only two classes of people who indulge in exercise. One class is made up of those who are enthusiastic for a week, more or less; the other class consists of those who remain enthusiastic. Of course it.is impossible to draw a definite line between these two classes, for those in the first class may last from a day to a month or two.

Stark CenterUniversity of Texas