diadochos

κρεῖττον εἶναι φιλοσόφως ἀποθανεῖν ἢ ἀφιλοσόφως ζῆν → that it is better to die in manner befitting a philosopher than to live unphilosophically

Latin > English (Lewis & Short)

dĭădŏchos: i, m., = διάδοχος>,
I a jewel resembling the beryl, Plin. 37, 10, 57, § 157.