Your fatuous title accusing Galois of stupidity offers insufficient evidence of any stupidity. Just because he remained committed to his convictions and revolutionary ideals, and disobeyed pedagogues, rather than acquiesce to the forlorn and miserable existence of school-life, in no way undermines his genius. Your suggestion towards the end "that if you want to learn mathematics, it is always good to go back to the masters whenever you can" is laughable in the extreme.