This is useful knowledge. With it the blind again see, the lame walk, the ill recover, the insane become sane and the sane become saner. By its use t… - L. Ron Hubbard

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This is useful knowledge. With it the blind again see, the lame walk, the ill recover, the insane become sane and the sane become saner. By its use the thousand abilities Man has sought to recover become his once more.