Physically the unlikeness of Hebrew to Greek was very marked. Allowing for climatic effects, the Hebrew physiognomy has preserved itself until to-day. The true, or at least the ideal, Greek type is almost lost in hybrid forms, yet we know what it was. The ideal Hellene was tall, upright, strong and supple withal, his lightish hair and beard were thick and curling, his features straight and firm, his brow broad, his eyes full and light. The whole form and aspect expressed a healthy zest of life, an open-eyed contemplation of men and things, and a belief in the sovereign virtue of reason. The outward aspect of the Hebrew type is very different from this. The inward difference of the two races was no less great. The essential contrast between them is not one of brow and eye, it is one of thinking and seeing, a contrast between two sets of ideals and principles, two ways of looking at life and the world. Romans like Juvenal, who saw both Greeks and Jews numerous in the imperial city, could only superficially observe that the Jew was unsocial, narrow in his prejudices and obstinate in his superstitions, while the Greek was as devoid of principle as he was brilliantly versatile. The Jew and Greek whom he saw were those of a demoralised period; but in any case the Roman did not understand either; he did not know that each was the representative of a certain important set of principles carried to excess. He would hardly have thought it worth his while to reflect on such a matter. It is otherwise with us, to whom all great human phenomena are of significance for that sound thinking which is essential to progress.