Yet another example of never write off a troublesome child -
Tracy was a difficult and hyperactive child?[5] with poor school attendance.[6] Raised Catholic, he was placed in the care of Dominican Order nuns at the age of nine in an attempt to transform his behavior.[7] Later in life, he remarked that he "never would have gone back to school if there had been any other way of learning to read the subtitles in the movies".[6] He became fascinated with movies, watching the same ones repeatedly and later re-enacting scenes to his friends and neighbors.[8] He attended several Jesuit academies in his teenage years, which he claimed took the "badness" out of him and helped him improve his grades. https://en.wikipedia.org/wiki/Spencer_Tracy#Early_life
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”