This probably influenced the theory of numbers of Pythagoras, who believed that behind the appearance of things there was the permanent principle of mathematics.
ðɪs pɹˈɑːbəbli ˈɪnfluːənst ðə θˈiəɹi ʌv nˈʌmbɚz ʌv paɪθˈæɡɚɹəs, hˌuː bᵻlˈiːvd ðæt bᵻhˌaɪnd ðɪ ɐpˈɪɹəns ʌv θˈɪŋz ðɛɹwˌʌz ðə pˈɜːmənənt pɹˈɪnsɪpəl ʌv mˌæθɪmˈæɾɪks.