Wouk said he did not. Feynman told him he needed to learn it because ‘that’s the language God talks.’ Calculus, then, became the recurring punch line of the session.

On May 2nd, 1956, acclaimed theoretical physicist Richard Feyman gave a lunchtime talk at the California Institute of Technology. The relation between science and religion was on the docket that day.

The play’s only reference to his religion — or rather rejection of it — comes in a flashback, when he begins to recite the "Kaddish" (with fine Hebrew pronunciation) at his father’s grave.