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 RandMan needs knowledge in order to survive, and only reason can achieve it; men who reject the responsibility of thought and reason, can exist only as parasites on the thinking of others.
Ayn RandA morality that holds need as a claim, holds emptiness-non-existence-as its standard of value; it rewards an absence, a defect: weakness, inability, incompetence, suffering, disease, disaster, the lack, the fault, the flaw-the zero.
Ayn Rand