Plato, Laws 888c

αὐτῶν πολλοῖσι, φράζοιμʼ ἄν, τὸ μηδένα πώποτε λαβόντα ἐκ νέου ταύτην τὴν δόξαν περὶ θεῶν, ὡς οὐκ εἰσίν, διατελέσαι πρὸς γῆρας μείναντα ἐν ταύτῃ τῇ διανοήσει, τὰ δύο μέντοι πάθη περὶ θεοὺς μεῖναι, πολλοῖσι μὲν οὔ, μεῖναι δὲ οὖν τισιν, τὸ τοὺς θεοὺς εἶναι μέν, φροντίζειν δὲ οὐδὲν τῶν ἀνθρωπίνων, καὶ τὸ μετὰ τοῦτο, ὡς φροντίζουσι μέν, εὐπαραμύθητοι δʼ εἰσὶν θύμασιν καὶ εὐχαῖς. τὸ δὴ σαφὲς ἂν γενόμενόν σοι περὶ αὐτῶν κατὰ δύναμιν δόγμα, ἂν ἐμοὶ πείθῃ, περιμενεῖς, ἀνασκοπῶν εἴτε οὕτως εἴτε ἄλλως ἔχει,

who from his youth has adopted this opinion, that the gods have no existence, has ever yet continued till old age constant in the same view; but the other two false notions about the gods do remain—not, indeed, with many, but still with some,—the notion, namely, that the gods exist, but pay no heed to human affairs, and the other notion that they do pay heed, but are easily won over by prayers and offerings. For a doctrine about them that is to prove the truest you can possibly form you will, if you take my advice, wait, considering the while whether the truth stands thus or otherwise,