It was a false maxim of Domitian that he who would gain the people of Rome must promise all things and perform nothing. For when a man is known to be false in his word, instead of a column, which he might be by keeping it, for others to rest upon, he becomes a reed, which no man will vouchsafe to lean upon. Like a floating island, when we come next day to seek it, it is carried from the place we left it in, and, instead of earth to build upon, we find nothing but inconstant and deceiving waves.
Feltham