The men who succeed are the efficient few. They are the few who have the ambition and will power to develop themselves.
Robert BurtonThey [i.e. ambitious men] may not cease, but as a dog in a wheel, a bird in a cage, or a squirrel in a chain, so Budaeus compares them; they climb and climb still, with much labour, but never make an end, never at the top.
Robert Burton