“The principle must always rule that ideas are not born of other ideas, philosophies of other philosophies; they are a continually renewed of real historical development. The unity of history (what the idealists call unity of the spirit) is not a presupposition, but a continuously developing process.”

“The principle must always rule that ideas are not born of other ideas, philosophies of other philosophies; they are a continually renewed of real historical development. The unity of history (what the idealists call unity of the spirit) is not a presupposition, but a continuously developing process.”

“The principle must always rule that ideas are not born of other ideas, philosophies of other philosophies; they are a continually renewed of real historical development. The unity of history (what the idealists call unity of the spirit) is not a presupposition, but a continuously developing process.”