ONE:It is not true that the sciences have always been injurious to mankind; when they were so, it was an inevitable evil. The multiplication of the human race over the face of the earth introduced war, the ruder arts, and the first laws, mere temporary agreements which perished with the necessity that gave rise to them. This was mankind��s primitive philosophy, the few elements of which were just, because the indolence and slight wisdom of their framers preserved them from error. But with the multiplication of men there went ever a multiplication of their wants. Stronger and more lasting impressions were, therefore, needed, in order to turn them back from repeated lapses to that primitive state of disunion which each return to it rendered worse. Those primitive delusions, therefore, which peopled the earth with false divinities and created an invisible universe that governed our own, conferred a great benefit��I mean a great political benefit��upon humanity. Those men were benefactors of their kind, who dared to deceive them and drag them, docile and ignorant, to worship at the altars. By presenting to them objects that lay beyond the scope of sense and fled from their grasp the nearer they seemed to approach them��never despised, because never well understood��they concentrated their divided passions upon a single object[247] of supreme interest to them. These were the first steps of all the nations that formed themselves out of savage tribes; this was the epoch when larger communities were formed, and such was their necessary and perhaps their only bond. I say nothing of that chosen people of God, for whom the most extraordinary miracles and the most signal favours were a substitute for human policy. But as it is the quality of error to fall into infinite subdivisions, so the sciences that grew out of it made of mankind a blind fanatical multitude, which, shut up within a close labyrinth, collides together in such confusion, that some sensitive and philosophical minds have regretted to this day the ancient savage state. That is the first epoch in which the sciences or rather opinions are injurious.As to the obscurity you find in the work, I heard, as I wrote, the clash of chains that superstition still shakes, and the cries of fanaticism that drown the voice of truth; and the perception of this frightful spectacle induced me sometimes to veil the truth in clouds. I wished to defend truth, without making myself her martyr. This idea of the necessity of obscurity has made me obscure sometimes without necessity. Add to this my inexperience and my want of practice in writing, pardonable in an author of twenty-eight,[3] who only five years ago first set foot in the career of letters.