The men who are going to the front first should have every chance of conserving their vitality and increasing their resistive forces.
Those of us who must do work behind the lines should be kept equally fit for that larger work without which the machine must inevitably break down.

The method is scientific and it has been tested on men of all ages from eighteen to seventy.

It embodies the elimination of all wasted effort and concentration upon points of approved and essential worth.

It is as much a man's duty to make himself fit and to keep himself in that condition as it is to carry on any other part of his work.

This method should be adopted not only in every department at Washington, but throughout the country; it should be taught in our schools and colleges, and so thoroughly that never again in a world-wide crisis shall we find ourselves physically unprepared..