Lucian of Samosata Rhetorum praeceptor 17

[17] Hunt up obscure, unfamiliar words, rarely used by the ancients, and have a heap of these in readiness to launch at your audience. The many-headed crowd will look up to you and think you amazing, and far beyond themselves in education, if you call rubbing down ‘ destrigillation,’ taking a sun-bath ‘insolation,’ advance payments ‘hansel,’ and daybreak ‘crepuscule.” Sometimes you must yourself make new monstrosities of words and prescribe that an able writer be called fine-dictioned, an intelligent man sage-minded, and a dancer handiwise. ¹ . If you commit a solecism or a barbarism, let shamelessness be your sole and only remedy, and be ready at once with the name of someone who is not now alive and never was, either a poet or a historian, saying that he, a learned man, extremely precise in his diction, approved the expression. As for reading the classics, don’t you do it—either that twaddling Isocrates or that uncouth Demosthenes or that tiresome Plato. No, read the speeches of the men who lived only a little before our own time, and these pieces that they call ‘exercises,’ ² in order to secure from them a supply of provisions which you can use up as occasion arises, drawing, as it were, on the buttery.