LEARN FROM MISTAKES

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LEARN FROM MISTAKES
Thomas Edison tried two thousand different materials in search of a filament for the light
bulb. When none worked satisfactorily, his assistant complained, “All our work is in vain.
We have learned nothing.”
Edison replied very confidently, “Oh, we have come a long way and we have learned a
lot. We know that there are two thousand elements which we cannot use to make a good
light bulb.”

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