Complex sentence: His style was high-flown and artificial, as was natural considering his early training, and he frequently sacrificed truth to rhetoric effect; but, according to Dionysius of Halicarnassus, he and Theopompus were the only historical writers whose language was accurate and finished.
Split into simpler sentences: His style was high-flown and artificial, as was natural considering his early training, and he frequently sacrificed truth to rhetoric effect. However, according to Dionysius of Halicarnassus, he and Theopompus were the only historical writers whose language was accurate and finished.