"The dream is a series of images, which are apparently contradictory and nonsensical, but arise in reality from psychologic material which yields a clear meaning."

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When it happeneth that a man signifieth unto us two contradictory opinions whereof the one is clearly and directly signified, andthe other either drawn from that by consequence, or not known to be contradictory to it; then (when he is not present to explicate himself better) we are to take the former of his opinions; for that is clearly signified to be his, and directly, whereas the other might proceed from error in the deduction, or ignorance of the repugnancy.

— Thomas Hobbes