The impious writings of Leucippus and Diagoras perished with their authors
The soul insensibly adapts itself to the objects on which it is employed, and thus it is that great occasions produce great men
Such are the wonderful men, whom their contemporaries held in the highest esteem during their lives, and to whom immortality has been attributed since their decease. Such are the wise maxims we have received from them, and which are transmitted, from age to age, to our descendants. Paganism, though given over to all the extravagances of human reason, has left nothing to compare with the shameful monuments which have been prepared by the art of printing, during the reign of the gospel. The world, in their days, was ignorant of the art of immortalising the errors and extravagancies of the human mind. But thanks to the art of printing and the use we make of it, the pernicious reflections of Hobbes and Spinoza will last for ever. Go, famous writings, of which the ignorance and rusticity of our forefathers would have been incapable. Go to our descendants, along with those still more pernicious works which reek of the corrupted manners of the present age! Let them together convey to posterity a faithful history of the progress and advantages of our arts and sciences. If they are read, they will leave not a doubt about the question we are now discussing, and unless mankind should then be still more foolish than we, they will lift up their hands to Heaven and exclaim in bitterness of heart: «Almighty God! thou who holdest in Thy hand the minds of men, deliver us from the fatal arts and sciences of our forefathers; give us back ignorance, innocence and poverty, which alone can make us happy and are precious in Thy sight.»
But if the progress of the arts and sciences has added nothing to our real happiness; if it has corrupted our morals, and if that corruption has vitiated our taste, what are we to think of the herd of text-book authors, who have removed those impediments which nature purposely laid in the way to the Temple of the Muses, in order to guard its approach and try the powers of those who might be tempted to seek knowledge? What are we to think of those compilers who have indiscreetly broken open the door of the sciences, and introduced into their sanctuary a populace unworthy to approach it, when it was greatly to be wished that all who should be found incapable of making a considerable progress in the career of learning should have been repulsed at the entrance, and thereby cast upon those arts which are useful to society.
But if we are desirous that nothing should be above their genius, nothing should be beyond their hopes
A man who will be all his life a bad versifier, or a third-rate geometrician, might have made nevertheless an excellent clothier. Those whom nature intended for her disciples have not needed masters. Bacon, Descartes and Newton, those teachers of mankind, had themselves no teachers. What guide indeed could have taken them so far as their sublime genius directed them? Ordinary masters would only have cramped their intelligence, by confining it within the narrow limits of their own capacity. It was from the obstacles they met with at first, that they learned to exert themselves, and bestirred themselves to traverse the vast field which they covered. If it be proper to allow some men to apply themselves to the study of the arts and sciences, it is only those who feel themselves able to walk alone in their footsteps and to outstrip them.
It belongs only to these few to raise monuments to the glory of the human understanding. This is the only encouragement they require. The greatest orator in the world was Consul of Rome, and perhaps the greatest of philosophers Lord Chancellor of England. Can it be conceived that, if the former had only been a professor at some University, and the latter a pensioner of some Academy, their works would not have suffered from their situation. Let not princes disdain to admit into their councils those who are most capable of giving them good advice.