William James 
On Vital Reserves [PDF ebook] 
The Energies of Men, And, the Gospel of Relaxation

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Occasions we make a practice of stopping an occupation as soon as we meet the first effective layer (so to call it) of fatigue. We have then walked, played, or worked enough, so we desist. That amount of.