Most honourable, magnificent and sovereign lords, I am, with the most profound respect,

Your most humble and obedient servant and fellow-citizen.

J. J. ROUSSEAU.
Chambéry,
June 12, 1754.


[PREFACE]

Of all human sciences the most useful and most imperfect appears to me to be that of mankind: and I will venture to say, the single inscription on the Temple of Delphi contained a precept more difficult and more important than is to be found in all the huge volumes that moralists have ever written. I consider the subject of the following discourse as one of the most interesting questions philosophy can propose, and unhappily for us, one of, the most thorny that philosophers can have to solve. For how shall we know the source of inequality between men, if we do not begin by knowing mankind? And how shall man hope to see himself as nature made him, across all the changes which the succession of place and time must have produced in his original constitution? How can he distinguish what is fundamental in his nature from the changes and additions which his circumstances and the advances he has made have introduced to modify his primitive condition? Like the statue of Glaucus, which was so disfigured by time, seas and tempests, that it looked more like a wild beast than a god, the human soul, altered in society by a thousand causes perpetually recurring, by the acquisition of a multitude of truths and errors, by the changes happening to the constitution of the body, and by the continual jarring of the passions, has, so to speak, changed in appearance, so as to be hardly recognisable. Instead of a being, acting constantly from fixed and invariable principles, instead of that celestial and majestic simplicity, impressed on it by its divine Author, we find in it only the frightful contrast of passion mistaking itself for reason, and of understanding grown delirious.

It is still more cruel that, as every advance made by the human species removes it still farther from its primitive state, the more discoveries we make, the more we deprive ourselves of the means of making the most important of all. Thus it is, in one sense, by our very study of man, that the knowledge of him is put out of our power.

It is easy to perceive that it is in these successive changes in the constitution of man that we must look for the origin of those differences which now distinguish men, who, it is allowed, are as equal among themselves as were the animals of every kind, before physical causes had introduced those varieties which are now observable among some of them.

It is, in fact, not to be conceived that these primary changes, however they may have arisen, could have altered, all at once and in the same manner, every individual of the species. It is natural to think that, while the condition of some of them grew better or worse, and they were acquiring various good or bad qualities not inherent in their nature, there were others who continued a longer time in their original condition. Such was doubtless the first source of the inequality of mankind, which it is much easier to point out thus in general terms, than to assign with precision to its actual causes.

Let not my readers therefore imagine that I flatter myself with having seen what it appears to me so difficult to discover. I have here entered upon certain arguments, and risked some conjectures, less in the hope of solving the difficulty, than with a view to throwing some light upon it, and reducing the question to its proper form. Others may easily proceed farther on the same road, and yet no one find it very easy to get to the end. For it is by no means a light undertaking to distinguish properly between what is original and what is artificial in the actual nature of man, or to form a true idea of a state which no longer exists, perhaps never did exist, and probably never will exist; and of which, it is, nevertheless, necessary to have true ideas, in order to form a proper judgment of our present state. It requires, indeed, more philosophy than can be imagined to enable any one to determine exactly what precautions he ought to take, in order to make solid observations on this subject; and it appears to me that a good solution of the following problem would be not unworthy of the Aristotles and Plinys of the present age. What experiments would have to be made, to discover the natural man? And how are those experiments to be made in a state of society?