 By the age of eight, he had read "Aesop's Fables", Xenophon's "Anabasis", and the whole of Herodotus, and was acquainted with Lucian, Diogenes Laërtius, Isocrates and six dialogues of Plato.He had also read a great deal of history in English and had been taught arithmetic, physics and astronomy.At the age of eight, Mill began studying Latin, the works of Euclid, and algebra, and was appointed schoolmaster to the younger children of the family.