take upon himself the part of the volcano; this is the whole
terrestrial crust, the whole multitude which internal fire impels to rise
and throw up either an Alpine chain or a better and freer society. And
whatever heroism there may be in their madness, however great and
contagious may be their thirst for martyrdom, murderers are never
anything but murderers, whose deeds simply sow the seeds of horror. And
if on the one hand Victor Mathis had avenged Salvat, he had also slain
him, so universal had been the cry of reprobation roused by the second
crime, which was yet more monstrous and more useless than the first.

Guillaume, laughing in his turn, replied to Bertheroy in words which
showed how completely he was cured: "You are right," he said, "all ends
well since all contributes to truth and justice. Unfortunately, thousands
of years are sometimes needed for any progress to be accomplished....
However, for my part, I am simply going to put my new explosive on the
market, so that those who secure the necessary authorisation may
manufacture it and grow rich. Henceforth it belongs to one and all....
And I've renounced all idea of revolutionising the world."

But Bertheroy protested. This great official scientist, this member of
the Institute laden with offices and honours, pointed to the little
motor, and replied with all the vigour of his seventy years: "But that is
revolution, the true, the only revolution. It is with things like that
and not with stupid bombs that one revolutionises the world! It is not by
destroying, but by creating, that you have just done the work of a
revolutionist. And how many times already have I not told you that
science alone is the world's revolutionary force, the only force which,
far above all paltry political incidents, the vain agitation of despots,
priests, sectarians and ambitious people of all kinds, works for the
benefit of those who will come after us, and prepares the triumph of
truth, justice and peace.... Ah, my dear child, if you wish to
overturn the world by striving to set a little more happiness in it, you
have only to remain in your laboratory here, for human happiness can
spring only from the furnace of the scientist."

He spoke perhaps in a somewhat jesting way, but one could feel that he
was convinced of it all, that he held everything excepting science in
utter contempt. He had not even shown any surprise when Pierre had cast
his cassock aside; and on finding him there wi