It pursues a well-defined path, and confines itself to a small circle of associates whose grades of culture are very nearly the same. Here, therefore, can the dialogue be strongly developed because it has a fixed foundation, and each one can take part in the conversation; whereas, from the variety of opinions among a great number, it is easily perverted into an aimless talk, and the majority of the hearers, who have no chance to speak, become weary.—— § 130. As to the way in which the lecture is carried out, it may be so arranged as to give the whole stock of information acquired, or, without being so exact and so complete, it may bring to its elucidation only a relatively inexact and general information. The ancients called the first method the esoteric and the second the exoteric, as we give to such lectures now, respectively, the names _scholastic_ and _popular_. The first makes use of terms which have become technical in science or art, and proceeds syllogistically to combine the isolated ideas; the second endeavors to substitute for technicalities generally understood signs, and conceals the exactness of the formal conclusion by means of a conversational style. It is possible to conceive of a perfectly methodical treatment of a science which at the same time shall be generally comprehensible if it strives to attain the transparency of real beauty. A scientific work of art may be correctly said to be popular, as e.g. has happened to Herder's _Ideas on the Philosophy of the History of Mankind_.