Alciato's Book of Emblems

Emblem 54

It does not behove one who has been careless with his own to be trusted with the things of others

Why do you build your nest in the bosom of the Colchian? Alas, ignorant bird, why do you so wrongly entrust your chicks? Medea, a horrid parent, most savagely killed her own children, and do you expect that she will spare yours?