text_original: Per  haps there is no more pregnant principle for any kind of history than the following, which, difficult though it is to master, should none the less be mastered in every detail.
text_transcription: PERHAPS THERE IS NO MORE PREGNANT PRINCIPLE FOR ANY KIND OF HISTORY THAN THE FOLLOWING WHICH DIFFICULT THOUGH IT IS TO MASTER SHOULD NONE THE LESS BE MASTERED IN EVERY DETAIL
phonemes: pɜː hˈæps ðɛɹ ɪz nˈoʊmˌɔːɹ pɹˈɛɡnənt pɹˈɪnsɪpəl fɔːɹ ˌɛni kˈaɪnd ʌv hˈɪstɚɹi ðɐn ðə fˈɑːloʊɪŋ, wˈɪtʃ, dˈɪfɪkəlt ðˌoʊ ɪɾ ɪz tə mˈæstɚ, ʃˌʊd nˈʌn ðə lˈɛs biː mˈæstɚd ɪn ˈɛvɹi diːtˈeɪl.