“In this distribution of functions the scholar is the delegated intellect.  In the right state he is Man thinking.  In the degenerate state, when the victim of society, he tends to become a mere thinker, or still worse, the parrot of other men’s thinking.  In this view of him, as Man thinking, the theory of his office is continued.  Him Nature solicits with all her placid, all her monitory pictures; him the past instructs; him the future invites.”

Emerson proceeds to describe and illustrate the influences of nature upon the mind, returning to the strain of thought with which his previous Essay has made us familiar.  He next considers the influence of the past, and especially of books as the best type of that influence.  “Books are the best of things well used; abused among the worst.”  It is hard to distil what is already a quintessence without loss of what is just as good as the product of our labor.  A sentence or two may serve to give an impression of the epigrammatic wisdom of his counsel.

    “Each age must write its own books, or, rather, each generation
    for the next succeeding.  The books of an older period will not fit
    this.”

When a book has gained a certain hold on the mind, it is liable to become an object of idolatrous regard.

“Instantly the book becomes noxious:  the guide is a tyrant.  The sluggish and perverted mind of the multitude, slow to open to the incursions of reason, having once so opened, having received this book, stands upon it and makes an outcry if it is disparaged.  Colleges are built on it.  Books are written on it by thinkers, not by Man thinking; by men of talent, that is, who start wrong, who set out from accepted dogmas, not from their own sight of principle.  Meek young men grow up in libraries, believing it their duty to accept the views which Cicero, which Locke, which Bacon have given; forgetful that Cicero, Locke, and Bacon were only young men in libraries when they wrote these books.—­One must he an inventor to read well.  As the proverb says, ’He that would bring home the wealth of the Indies must carry out the wealth of the Indies.’—­When the mind is braced by labor and invention, the page of whatever book we read becomes luminous with manifold allusion.  Every sentence is doubly significant, and the sense of our author is as broad as the world.”

It is not enough that the scholar should be a student of nature and of books.  He must take a part in the affairs of the world about him.

“Action is with the scholar subordinate, but it is essential.  Without it he is not yet man.  Without it thought can never ripen into truth.—­The true scholar grudges every opportunity of action past by, as a loss of power.  It is the raw material out of which the intellect moulds her splendid products.  A strange process, too, this by which experience is converted into thought as a mulberry leaf is converted into satin.