“Mental stamina - determination - is a quality of the mind shattered by fatigue.But physical stamina - endurance - is built upon fatigue.” MindQualityBuiltDeterminationEnduranceFatigueShatteredStamina Author:Len Smith
“Endurance cannot be produced by determination alone; endurance is a product of physical exercise.” ProductsExerciseDeterminationEndurancePhysical Exercise Author:Len Smith