"Perseverance is the very hinge of all virtues"Carlyle wrote

in one of his famous essays"On looking over the world,the

cause of nine-tenths of the lamentable failures which occur

in men`s undertaking and darken and degrade so much of

their history,lies not in the want of talents,or the will

to use them,but in the vacillating and desultory mode of

using them,in flying from object to object,in starting away

at each little disgust,and thus applying the force which

might conquer any one difficulty to a series of

difficulties,so large that no human force can conquer them. "