Once someone told Thomas Edison that making the light bulb will be impossible yet Thomas Edison didn’t listen, he believed that if he could succeed at his goal he can prove everyone wrong who said it was impossible.So he kept trying and trying even though people kept telling him it was too foolish to even attempt it but he never listened. Then one day it worked, he succeeded at his goal and all it took was a positive attitude.If he never succeeded or never had a positive attitude imagine where we would be right now without light bulbs!Same thing with Alexander Graham Bell.Where would we be if he stop trying to make the telephone.Also landing Neil Armstrong on the moon, Henry Ford making cars, Wright brothers making planes.