The special form it assumed was a contest respecting the standard or criterion of truth, whether it is to be found in the Church or in the Bible.

The determination of this involved a settlement of the rights of reason, or intellectual freedom.

Luther, who is the conspicuous man of the epoch, carried into effect his intention with no inconsiderable success; and at the close of the struggle it was found that Northern Europe was lost to Roman Christianity.
We are now in the midst of a controversy respecting the mode of government of the world, whether it be by incessant divine intervention, or by the operation of primordial and unchangeable law.

The intellectual movement of Christendom has reached that point which Arabism had attained to in the tenth and eleventh centuries; and doctrines which were then discussed are presenting themselves again for review; such are those of Evolution, Creation, Development.
Offered under these general titles, I think it will be found that all the essential points of this great controversy are included.

By grouping under these comprehensive heads the facts to be considered, and dealing with each group separately, we shall doubtless acquire clear views of their inter-connection and their historical succession.
I have treated of these conflicts as nearly as I conveniently could in their proper chronological order, and, for the sake of completeness, have added chapters on-- An examination of what Latin Christianity has done for modern civilization.
A corresponding examination of what Science has done.
The attitude of Roman Christianity in the impending conflict, as defined by the Vatican Council.
The attention of many truth-seeking persons has been so exclusively given to the details of sectarian dissensions, that the long strife, to the history of which these pages are devoted, is popularly but little known.