Word and deed

The philosopher Favorinus thus addressed a young man who was very fond of old words and made a display in his ordinary, everyday conversation of many expressions that were quite too unfamiliar and archaic: […] Live by all means according to the manners of the past, but speak in the language of the present, and always remember and take to heart what Gaius Caesar, a man of surpassing talent and wisdom, wrote in the first book of his treatise On Analogy: ‘Avoid, as you would a rock, a strange and unfamiliar word.’ “

— Gellius