He seeks to obtain recognition of the moral authority of the Vatican in Russia; he dreams of disarming the Anglican Church and of drawing it into a sort of fraternal truce; and he particularly seeks to come to an understanding with the Schismatical Churches of the East, which he regards as sisters, simply living apart, whose return his paternal heart entreats.

Would not Rome indeed dispose of victorious strength if she exercised uncontested sway over all the Christians of the earth?
And here the social ideas of Leo XIII come in.

Whilst yet Bishop of Perugia he wrote a pastoral letter in which a vague humanitarian socialism appeared.

As soon, however, as he had assumed the triple crown his opinions changed and he anathematised the revolutionaries whose audacity was terrifying Italy.

But almost at once he corrected himself, warned by events and realising the great danger of leaving socialism in the hands of the enemies of the Church.