I know you well – I see my fate before me.
Never a chance that I could win you over…
Iron inside your chest, that heart of yours.
But now beware, or my curse will draw god’s wrath
upon your head, that day when Paris and lord Apollo –
for all your fighting heart – destroy you at the Scaean gates!

– Homer

The Iliad, Book 22, lines 419-424. In his last dying breath, Hector foretells the death of Achilles at the Scaean gates, where he says that he will be destroyed by Paris and Apollo. He accuses Achilles for having a hard heart.