Shoshin wasuru bekarazu: do not forget the beginner’s mind. In his treatise Kakyō, the Noh master Zeami names three kinds.
Zehi no shoshin is the unpolished art of one’s early days, kept as a standard. Jiji no shoshin is the inexperience that belongs to each stage of a career. Rōgo no shoshin is the new beginning that old age brings.