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The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.

老年最好的盔甲就是追求完美、沒有虛度的一生。

大腦不是傳統意義上的計算機，但它確實進行計算。