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, and other such trivial matters. It’s a strange thing that when everyone becomes educated, everyone knows about the pronoun but no one knows about the Sago-sago. (H)