[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.

Section 2, member 3, subsection 11, Concupiscible Appetite, as Desires, Ambition, Causes. - The Anatomy of Melancholy (1621)