"Listen, O man, from whatever country you may be, whatever your opinions! Here is your history such as I believe to read it, not in books written by your fellow men, who are liars, but in nature, which never lies. Everything that comes from nature will be true. Nothing will be false, except what I might unintentionally have included of my own. The times of which I shall speak are very distant. How much you have changed from what you once were! It is, so to speak, the life of your species I will describe to you according to the qualities that you have received, and that your education and your habits have been able to corrupt but not destroy. There is, I believe, an age at which an individual might want to stop growing older; you will look for the age at which you wish your species to have gone no further. Discontented with your present state for reasons that herald even greater discontent for your unfortunate posterity, you might perhaps wish to be able to go back in time. And this sentiment must lead to the praise of your first ancestors, the criticism of your contemporaries, and dread for those who will have the misfortune of living after you."