[39]
Now perhaps someone will venture to object to what I have proposed, saying that I am trying to persuade you to set yourself to an impossible task, since the Argives could never be friendly to the Lacedaemonians, nor the Lacedaemonians to the Thebans, and since, in general, those who have been accustomed throughout their whole existence to press their own selfish interests can never share and share alike with each other.