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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