He (or she) who reveals the world of art to them opens heaven to them.

They become satellites, disciples, worshippers of the apostle.

Now the apostle may be a voluptuary without much conscience.
Nature may have given him enough virtue to suffice in a reasonable environment.

But this allowance may not be enough to defend him against the temptation and demoralization of finding himself a little god on the strength of what ought to be a quite ordinary culture.

He may find adorers in all directions in our uncultivated society among people of stronger character than himself, not one of whom, if they had been artistically educated, would have had anything to learn from him, or regarded him as in any way extraordinary apart from his actual achievements as an artist.