Throughout the past week, members of MBS have set up stations at Boston Green Academy, a public charter school in Brighton, to teach interactive lessons related to neuroscience in a program called “Piece of Mind.” 

He’s a reformer and an autocrat, a modernizer and a repressive leader, a prince but an acting king. His name is Mohammed bin Salman. But he goes by the name MBS (pronounce each letter). This two-faced...