strength+of+will
131Habit — • Habit is an effect of repeated acts and an aptitude to reproduce them, and may be defined as a quality difficult to change, whereby an agent whose nature it is to work one way or another indeterminately, is disposed easily and readily at will… …
132Ultimate failure — In mechanical engineering, ultimate failure describes the breaking of a material. In general there are two types or failure: fracture and buckling. Fracture of a material occurs when either an internal or external crack elongates the width or… …
