Psychologically: Toughness asks to stick unflustered to a plan, to work diligently on it, even if problems appear because one reaches then to the success. Now and again can be warned about stiff sense and stubbornness with which one gets stuck in a hopeless matter. The exact meaning arises from the individual living conditions. Popular: (arab).: place to stay with your plan, he is good and yields profit. (European ones).: one will have perseverance at the work.