One day, Thomas Edison returned home from school, and gave his mother a letter from the teacher. Mama read the letter to her son out loud, with tears in her eyes: "Your son is a genius." This school is too small, and there are no teachers who can teach him anything, please teach him yourself. "
Many years after his mother's death (Edison was already one of the greatest inventors of the century by that time), he once revised old family archives, and came across this letter. He opened it and read: "Your son is mentally retarded, we can no longer teach him at school with everyone. Therefore, we recommend that you teach him at home."
Edison sobbed for hours. Then he wrote in his diary: "Thomas Alva Edison was a mentally retarded child, thanks to his heroic mother, he became one of the greatest geniuses of his century."
Love your mothers.
What came first the lightbulb or lightsocket?