and it may well be that this same astounding race may at the present time be in the actual process of producing another system of morals and philosophy, as malevolent as christianity was benevolent, which, if not arrested would shatter irretrievably all that christianity has rendered possible.

How would the previous sentence be correctly capitalized?
And it may well be that this same astounding race may at the present time be in the actual process of producing another system of morals and philosophy, as malevolent as Christianity was benevolent, which, if not arrested would shatter irretrievably all that Christianity has rendered possible.