Its reference to fields of knowledge such as agriculture, architecture, astronomy, chemistry, commerce, engineering, ethnology, government, hygiene, music, poetry, philology, and tactical warfare is only incidental to development of the theme; not as a treatise.
18 Gayunman, ang mga Judio ay hindi naniwala may kinalaman sa kaniya na siya ay dating bulag at nagkaroon ng paningin, hanggang sa tawagin nila ang mga magulang ng lalaking nagkaroon ng paningin.jw2019 jw2019