The sanguinary characters and tenets of the leading jacobins had already made him say that no one was sure of six months of life, and he considered the decree of arrest synonymous to a sentence of death. He escaped pursuit, and concealed himself. A generous woman, before unknown to him, and who has never revealed her name to the world, gave him refuge in her house. Denounced on the 3d of October, as Brissot's accomplice, there was no doubt that had he been taken he had shared the fate of the deputies who were guillotined in the month of November; but his place of concealment was not suspected, and he remained in safety till the August of the following year. [Sidenote: 1794. Ætat. 50.] During this long seclusion, he projected occupation in writing. At first, he meditated detailing the history of his political career; but he reflected that his many labours for his country were irrefragable documents; and, more attached to opinions which he considered pregnant with the welfare of mankind, than to facts which were but the evanescent forms of change, he applied himself to developing his theories in an "Historical Sketch of the Progress of the Human Mind." This is his most celebrated work. It is full of error and even of intolerance; still the clearness of the views, the enthusiasm with which he developes them, the order, precision, and the originality of his theories, render it remarkable. He glances over the past, and argues that each succeeding epoch in the history of mankind has brought moral improvement and increase of knowledge. There are two views to be taken of human nature. Condorcet insists that the moderns have more knowledge and wisdom and moral power than the ancients. He founds this opinion on the great progress made in scientific truths, and does not hesitate also to oppose French literature to the Greek, as demonstrating the advance of the human intellect in every branch. He compares also the states, wars, and crimes of antiquity with modern society and institutions, and deduces that we are more virtuous, more humane, and more reasonable than preceding generations. No greater poet has appeared since Homer composed the Iliad,--no more acute philosopher than Aristotle,--no more virtuous character than Socrates, nor sublimer hero than Regulus. By standing on ground reached by the ancients, the mass may climb higher than the masses that went before; but, in making progress, we do not develope more genius and sagacity, but rather less, than those who prepared our way. It is to be doubted, therefore, whether mankind can progress so as to produce specimens superior to Homer, Aristotle, Socrates, Regulus, and many others who adorned antiquity.