It took planning and perseverance to be successful.
Silent contemplation and the total deadening of consciousness by perseverance for years in unnatural attitudes are among the commonest forms assumed by this mystical asceticism.
Not contented with a careful attention to details, Tull set himself, with admirable skill and perseverance, to investigate the growth of plants, and thus to arrive at a knowledge of the principles by which the cultivation of field-crops should be regulated.
With indomitable perseverance he applied himself to these subjects; although himself a teacher, he regularly attended the lectures of Ammonius Saccas, and made a thorough study of the books of Plato and Numenius, of the Stoics and the Pythagoreans.
They have a full bell-like cry and great cunning and perseverance: in the tracking of hares and rabbits.