state of not knowing what a pronoun is, or how to find the square root of 27.4, and merely knowing childish and useless things like which of the seventy almost identical-looking species of the purple sea snake are the deadly ones, how to treat the poisonous pith of the Sago-sago tree to make a nourishing gruel, how to foretell the weather by the movements of the tree-climbing Burglar Crab, how to navigate across a thousand miles of featureless ocean by means of a piece of string and a small clay model of your grandfather, how to get essential vitamins from the liver of the ferocious Ice Bear,
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