• But I cannot forget that, at other times I have been deceived in sleep by similar illusions; and, attentively considering those cases, I perceive so clearly that there exist no certain marks by which the state of waking can ever be distinguished from sleep, that I feel greatly astonished; and in amazement I almost persuade myself that I am now dreaming.

    Rene Descartes, Benedict de Spinoza, Gottfried Wilhelm Von Leibniz (2011). “The Rationalists: Descartes: Discourse on Method & Meditations; Spinoza: Ethics; Leibniz: Monadolo gy & Discourse on Metaphysics”, p.114, Anchor
Cite this Page: Citation