He started his business making products such as castile soap by hand in his home. The product labels are crowded with statements of Bronner's philosophy, which he called "All-One-God-Faith" and the "Moral ABC", both of which he included on the label of every soap bottle he produced. Many of Bronner's references came from Jewish and Christian sources, such as the Shema and the Beatitudes; others from writers such as Rudyard Kipling and Thomas Paine. On his labels, he referred to the Jewish sage Hillel the Elder as "Rabbi Hillel" and to Jesus Christ as "Rabbi Jesus." The labels became famous for their idiosyncratic style, including hyphens to join long strings of words and the liberal use of exclamation marks.