In Hierocles’ Commentaries on the 'Symbols’ and 'Golden Verses’ of Pythagoras, M. Dacier, the translator, amplifies the prefatory Life of Pythagoras found in Hierocles, and he recounts, as Gaudentius, Nichomachus, Macrobius, Boëtius, and others have recounted, the incident which drew the attention of the ancient founder of the great system of secret numbers to the numerical relations of Sound in Music. The quaint old story is as follows: 'Pythagoras is honored with the Invention of Harmonical Measures; and ’tis related how it happened. They write, that one Day, after he had been meditating a long while on the Means of assisting the Hearing, as he had already found means of assisting the Sight, by the Rule, Compass, Astrolabe and other Instruments, and the Feeling, by the Balance and the Measures, he chanced to go by a Smith’s Shop, and heard several Hammers of different Sizes, beating Iron upon the Anvil. He was moved with the Justness of the Harmony, and going into the Shop, he examined the Hammers and their sound in regard to their Sizes; and, being returned home, he made an Instrument on the Wall of his Chamber, with Stakes that served for pegs and with strings of equal length, at the end of which he tied the different Weights, and by striking several of these strings at once he produced different Tones, and thereby learnt the Reasons of this different Harmony, and of the intervals that caused it.’ In general it may be pointed out that the Pythagorean system of harmonics was only incidental to philosophy. Thus Laloy, speaking of the musical system of Pythagoras, says: 'One finds, amid their confused accounts and contradictory assertions, a body of rules and precepts which present a “Pythagoric life,” as there was an “Orphic life,” in which justice, order, friendship, abstinence, geometry, and music are an integral part ... even metempsychosis itself being merely the truth inherent in a number.’