العقل أشبه بمسرح تتعاقب فيه إدراكات شتى، تظهر وتختفي، تعبر وتعود، تنزلق بعيدًا، وتتداخل في تنوّع لا نهاية له من الأوضاع والمواقف.

“The mind is a kind of theater, where several perceptions successively make their appearence; pass, re-pass, glide away, and mingle in an infinite variety of postures and situations.”David Hume — A Treatise on Human Nature: Being an Attempt to Introduce the Experimental Method of Reasoning Into Moral Subjects; and Dialogues Concerning Natural Religion (1874)