All other parts remaining as they were, And they, so perfect in their misery, Not once perceive their foul disfigurement, But boast themselves more comely than before And all their friends, and native home forget To roll with pleasure in a sensual sty.

-Milton,John
  Of Odysseus's men changed to beasts by Circe. Comus,  A Mask, l.72^7.

De natura Rationis est, res sub quadam aeternitatis specie percipere. It is the nature of reason to perceive things under a certain species of eternity.

-Spinoza, Baruch also known as Benedict de Spinoza
  Ethics, bk.2, prop.44, corollary 2.