For if an author does not penetrate to the essential in the human soul, to its deepest depth; if he has not dared, or has not been able to write his book regardless of consequences; if he has not ventured to represent his ideas in statuesque nakedness, has not imaged human nature as it showed itself to him, improving nothing and modifying nothing, but has taken counsel with his public, been guided by its prejudices, its ignorance, its untruthfulness, its vulgar or sentimental taste--he may have been, probably has been, highly distinguished by his contemporaries, he may have won laurels and wealth by his talents; for me he does not exist, to what I call literature his work is valueless. All the offspring of the author's _mariage de convenance_ with that doubtful character, public opinion, all those literary children which their author begets, giving a side-thought to the taste and morality of his public, are defunct a generation later. There was no real life and heat in them, nothing but timorous regard for a public which is now dead; they were nothing but the supply of a demand which has long ceased to exist. But every work in which an independent writer has, without any side-thought, uttered what he felt and described what he saw, is, and will continue to be, no matter how few editions of it may be printed, a valuable document. There is only a seeming contradiction between this condemnation of the literary work produced to please the public, and the doctrine of the sound natural influence of society on the author. It is certain that the author cannot separate himself from his age. But the current of the age is not an undivided current; there is an upper and an under one. To let one's self drive with or be driven by the upper one is weakness, and ends in destruction. In other words, every age has its dominant and favourite ideas and forms, which are simply the results of the life of former ages, that were arrived at long ago and have slowly petrified; but besides these it owns another whole class of quite different ideas, which have not yet taken shape, but are in the air, and are apprehended by the greatest men of the age as the results which must now be arrived at. These last are the ideas which form the unifying element of the new endeavour. In 1827 an English theatrical company visited Paris, and for the first time Frenchmen saw Shakespeare's masterpieces, _King Lear, Macbeth, Othello_, and _Hamlet_, admirably played. It was under the influence of these performances that Victor Hugo wrote that preface to _Cromwell_ which is regarded as the programme of the new literature.