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."
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 now know that there are two thousand
elements which we cannot use to make a good light bulb."
elements which we cannot use to make a good light bulb."
Moral : There is always an experience in failure
so never regret it.