οὔ μοι μέλει
From LSJ
ἐν δὲ τοῖς φυσικοῖς ἀεὶ οὕτως, ἂν μή τι ἐμποδίσῃ → in natural products the sequence is invariable, if there is no impediment | now with that which is natural it is always thus if there is no impediment
Greek > English (Woodhouse)
I do not care, I do not mind, I do not trouble, I take no interest in, it is indifferent to me