
Varianta: Co je nejmoudřejší? Číslo.
Zdroj: [Riedweg, Christoph, Pythagoras: His Life, Teaching, and Influence, https://books.google.cz/books?id=A8ixyQJA7_MC&pg=PA77&lpg=PA77&dq=#v=onepage&q=What%20is%20the%20wisest%3F%20Number.&f=false, Cornell University Press, New York, 2008, 77, 978-0-8014-7452-1, anglicky]