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  • Psychologically, the choice "to think or not" is the choice "to focus or not." Existentially, the choice "to focus or not" is the choice "to be conscious or not." Metaphysically, the choice "to be conscious or not" is the choice of life or death.

    Ayn Rand (1988). “The Ayn Rand Lexicon: Objectivism from A to Z”, p.193, Penguin