“It being my purpose to write the lives of Alexander the king, and of Cesar, by whom Pompey was destroyed, the multitude of their great actions affords so large a field that I were to blame …. When once Alexander had given way to fears of super natural influence, his mind grew so disturbed and so easily alarmed…… But a diseased habit of body, caused by drugs which Olympias gave him, had ruined not only his health, but his understanding.”