Friedrich Nietzsche. From Mixed Opinions and Maxims:
(168) Praise of aphorisms.— A good aphorism is too hard for the tooth of time and is not consumed by all millennia, although it serves every time for nourishment: this it is the great paradox of literature, the intransitory amid the changing, the food that always remains esteemed, like salt, and never loses its savor, as even that does.
Biblioklept 