He hath not eat paper, as it were; he hath not drunk ink; his intellect is not replenished; he is only an animal, only sensible in the duller parts. (Shakespeare, Love's Labor's Lost, IV)
Dreams, indeed, are ambition; for the very substance of the ambitious is merely the shadow of a dream. And I hold ambition of so airy and light a quality that it is but a shadow's shadow.