This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...eality and able to deal with it, a con- sciousness able to direct the actions and provide for the survival of a human being — an unfocused mind is not conscious.

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 “t o be conscious or not” is the choice of life or death.

Consciousness — for those living organisms which possess it — is the basic means of survival. For man, the basic means ...
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