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22 Hurdle They use this argument against the most obstinate: a stick, and a portable wall shoved in its face when it tries to veer off. Pig, pig, what can it be thinking of ? Is it aware that the man walks by its side, ready, with a square yard of flat hard space, to sever the pig from where it would go? Or do pig eyes see so low and straight ahead that, to the pig, the man is completely out of the picture? Not a force, not a visitor? And that’s just life, after all: wall, want, wall, want, wall? ...

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