Let no man marvel that the more part of these, even though they pleased gods, died none the less; for that was nature’s work; but the praise of them grew mightily;—nor yet that not all of these flourished at one time. For Cheiron’s lifetime sufficed for all. For Zeus and Cheiron were brethren, sons of one sire, but the mother of the one was Rhea, of the other the nymph Nais: and so, though he was born before these, he died after them, for he taught Achilles.