ðɪs wʌz bᵻfˌoːɹ ðə dɪvˈɛləpmənt ʌv hɪz juːnˈiːk stˈaɪl ʌv mˈɑːɹʃəl ˈɑːɹts kˈɔːld dʒˈiːt kjˈuːn dˈuː ɪnðə lˈeɪt nˈaɪntiːnhˈʌndɹɪd sˈɪksti z.
This was before the development of his unique style of martial arts called Jeet Kune Do in the late 1960s.