For we both alike know that into the discussion of human affairs the question of justice enters only where the pressure of necessity is equal, and that the powerful exact what they can, and the weak grant what they must.
ThucydidesFew things are brought to a successful issue by impetuous desire, but most by calm and prudent forethought.
ThucydidesIt is frequently a misfortune to have very brilliant men in charge of affairs. They expect too much of ordinary men.
Thucydides