During the agony of his party, Condorcet found shelter in a lodging-house at Paris. There, under the Reign of Terror, he wrote the little book on Human Progress, which contains his legacy to mankind. He derived the leading idea from his friend Turgot, and transmitted it to Comte. There may be, perhaps, a score or two dozen decisive and characteristic views that govern the world, and that every man should master in order to understand his age, and this is one of them. When the book was finished, the author's part was played, and he had nothing more to live for. As his retreat was known to one, at least, of the Montagnards, he feared to compromise those who had taken him in at the risk of their life. Condorcet assumed a disguise, and crept out of the house with a Horace in one pocket and a dose of poison in the other. When it was dark, he came to a friend's door in the country. What passed there has never been known, but the fugitive philosopher did not remain. A few miles outside Paris he was arrested on suspicion and lodged in the gaol. In the morning they found him lying dead. Cabanis, who afterwards supplied Napoleon in like manner, had given him the means of escape. This was the miserable end of the Girondin party. They were easily beaten and mercilessly destroyed, and no man stirred to save them. At their fall liberty perished; but it had become a feeble remnant in their hands, and a spark almost extinguished. Although they were not only weak but bad, no nation ever suffered a greater misfortune than that which befell France in their defeat and destruction. They had been the last obstacle to the Reign of Terror, and to the despotism which then by successive steps centred in Robespierre. XVIII THE REIGN OF TERROR