2The rest which relates to astrology, and the effects produced upon human life by the twelve signs, the five planets, the sun and the moon, must be left to the discussions of the Chaldeans, whose profession it is to cast nativities, and by means of the configurations of the stars to explain the past and the future. The talent, the ingenuity, and reputation of those who come from the country of the Chaldeans, is manifest from the discoveries they have left us in writing. Berosus was the first of them. He settled in the island and state of Cos, and there established a school. Afterwards came Antipater and Achinapolus, which latter not only gave rules for predicting a man’s fate by a knowledge of the time of his birth, but even by that of the moment wherein he was conceived.
2As for the branch of astronomy which concerns the influences of the twelve signs, the five stars, the sun, and the moon upon human life, we must leave all this to the calculations of the Chaldeans, to whom belongs the art of casting nativities, which enables them to declare the past and the future by means of calculations based on the stars. These discoveries have been transmitted by the men of genius and great acuteness who sprang directly from the nation of the Chaldeans; first of all, by Berosus, who settled in the island state of Cos, and there opened a school. Afterwards Antipater pursued the subject; then there was Archinapolus, who also left rules for casting nativities, based not on the moment of birth but on that of conception.