He is the earliest known ancient Greek writer on the subject; Pliny described him as primus de equitatu scripsit, "the first to have written on riding".
[1]: 4 [3] According to Xenophon, Simon dedicated a bronze statue of a horse, on a plinth decorated with reliefs of his deeds, in the Eleusinion in the Agora of Athens.
[1]: 4 Simon's writings are quoted by Xenophon,[4]: 69 who refers to him both in the Hipparchikós (Ἱππαρχικός) and in Perì hippikēs (Περὶ ἱππικῆς, "on horsemanship").
[1]: 4 His works were believed otherwise lost until, in 1853, the French philologist Charles Victor Daremberg discovered a single chapter in the library of Emmanuel College, Cambridge.
[1]: 4 Elsewhere in the Suda Simon's work is referred to as a ίπποσκοπικόν βιβλίον θαυμάσιον, or roughly "wonderful book of horse examination".