“[He] was ‘an antique guy in a modern world,’ appearing in a derby and vest and performing illusions from the vaudeville era: classic tricks with steel rings or handkerchief, dividing an assistant into thirds. … After [his sons] were born, Mr. Fields spent a year teaching elementary school in Manhattan’s Chinatown, which inspired him to create MatheMagic, a show for children that he performed up to 200 times a year.” – The New York Times