As everyone knows, the ancients before Aristotle did not consider the dream a product of the dreaming mind, but a divine inspiration, and in ancient times the two antagonistic streams, which one finds throughout in the estimates of dream life, were already noticeable. They distinguished between true and valuable dreams, sent to the dreamer to warn him or to foretell the future, and vain, fraudulent, and empty dreams, the object of which was to misguide or lead him to destruction.
Sigmund FreudA state of consciousness is characteristically very transitory; an idea that is conscious now is no longer so a moment later, although it can become so again under certain conditions that are easily brought about.
Sigmund FreudPhilosophers stretch the meaning of words until they retain scarcely anything of their original sense. They give the name of "God" to some vague abstraction which they have created for themselves; having done so they can pose before all the world as deists, as believers of God, and they can even boast that they have recognized a higher, purer concept of God, notwithstanding that their God is not nothing more than an insubstantial shadow and no longer the mighty personality of religious doctrines.
Sigmund Freud