Beauty needs no praise. Marcus Aurelius 4.20

What makes something beautiful? Not praise, according to Marcus Aurelius. And blame cannot destroy what praise cannot make.

Πᾶν τὸ καὶ ὁπωσοῦν καλὸν ἐξ ἑαυτοῦ καλόν ἐστι καὶ ἐφ’ ἑαυτὸ καταλήγει, οὐκ ἔχον μέρος ἑαυτοῦ τὸν ἔπαινον· οὔτε γοῦν χεῖρον οὔτε κρεῖττον γίνεται τὸ ἐπαινούμενον. τοῦτό φημι καὶ ἐπὶ τῶν κοινότερον καλῶν λεγομένων, οἷον ἐπὶ τῶν ὑλικῶν καὶ ἐπὶ τῶν τεχνικῶν κατασκευασμάτων· τὸ δὲ δὴ ὄντως καλὸν τίνος χρείαν ἔχει; οὐ μᾶλλον ἢ νόμος, οὐ μᾶλλον ἢ ἀλήθεια, οὐ μᾶλλον ἢ εὔνοια ἢ αἰδώς· τί τούτων διὰ τὸ ἐπαινεῖσθαι καλόν ἐστιν ἢ ψεγόμενον φθείρεται; σμαράγδιον γὰρ ἑαυτοῦ χεῖρον γίνεται, ἐὰν μὴ ἐπαινῆται; τί δὲ χρυσός, ἐλέφας, πορφύρα, λύρα, μαχαίριον, ἀνθύλλιον, δενδρύφιον;

Everything really beautiful, in any way, is beautiful on its own and retains its beauty by itself, owing nothing at all to praise. For praise does not make stuff better or worse. I speak here of things commonly called beautiful, material objects and cunning works of art. But what does a really beautiful thing require? What else but order, truth, grace, decorum. And which of these qualities becomes beautiful when praised, or perishes when blamed? Does a little emerald lose any luster, if nobody praise it? What about gold, ivory, purple dye, a lyre, a small knife, a little blossom, or a tiny tree?