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Show Telephone Learned From the ieaf. Alexander Graham Bell, the In- v ator of the telephone, hit on his marvelous discovery while study-ing study-ing and while teaching the deaf. At ,i dinner In Washington Pro-fessor Pro-fessor Eell said, apropos of this "Tea we can learn valuable secrets from the most unlikely sources. A Persian poet, famed for his wisdom, was once asked by his king where he had learned his philosophy. " From the blind sir ' the poet replied 'from the blind. who never advance a step until they have tried the ground.' " |