It was the opinion of Eusebius, in common with most of the Fathers, that the Greek philosophers, lawgivers, and poets had obtained their wisdom from the ancient Hebrews, and this point was pressed very strongly by many of the apologists in their effort to prove the antiquity of Christianity. The assertion was made especially in the case of Plato and Pythagoras, who were said to have become acquainted with the books of the Hebrews upon their journey to Egypt. Compare among other passages Justin’s Apol. I. 59 ff.; Clement of Alexandria’s Cohort. ad Gentes, chap. 6; and Tertullian’s Apol. chap. 47. Compare also Eusebius’ Præp. Evang., Bks. IX. and X.