Marx Brothers stage during the middle of a Groucho monologue to see if Groucho would be thrown off. However, to the audience's delight, Groucho merely reacted by commenting, "First time I ever saw a taxi hail a passenger". When Harpo chased the girl back in the other direction, Groucho calmly checked his watch and ad-libbed, "The 9:20's right on time. You can set your watch by the Lehigh Valley." The brothers' vaudeville act had made them stars on Broadway under Chico's management and with Groucho's creative direction—first with the musical revue "I'll Say She Is" (1924–1925) and then with two musical comedies:
Karl Marx and the Close of His System Karl Marx and the Close of His System Karl Marx and the Close of His System () is a critique of Karl Marx's economic theories by the Austrian economist Eugen Böhm von Bawerk, published in English translation in 1898. Böhm von Bawerk's work first appeared in 1896, in "Staatswissenschaftliche Arbeitern: Festgaben für Karl Knies", a collection of essays in honor of the German economist Karl Knies. It was published as a separate work later in 1896, and appeared in Russian translation in 1897 and in English translation in 1898. Bawerk provides a critique of Marx's "Capital". Examining Marx's theory of