Urs Oskar Keller Urs Oskar Keller, Switzerland
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Urs Oskar Keller "The oldest and shortest words - yes and no - also demand the deepest thinking." (Pythagoras of Samos)
Urs Oskar Keller
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Urs Oskar Keller, Texte, Vorträge, Trauerkarten, Schweiz
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Urs Oskar Keller, Texte, Vorträge, Trauerkarten, Schweiz
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