τὸ μὴ γενέσθαι κρεῖσσον ἢ φῦναι βροτοῖς → not existing is better for mortals than being born, not to be born is better than life for mortals
mūtŭĭter: adv., v. mutuus.
mūtŭĭter, c. mutuo 1 : Varr. d. Non. 513, 16.