"If you went in search of it, you would not find the boundaries of the soul, though you traveled every road-so deep is its measure [logos]."

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People often wonder just what trainers give the sheepdog in exchange for its boundless willingness. Food treats and praise sit on the trainer's shelf, untouched, unused. The sheepdog is shown its possibilities, he learns what life is like for a good dog and is invited to walk in a rational world whose farthest boundaries are defined by grace.

— Donald McCaig