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Pyrrhus, when his friends congratulated to him his victory over the Romans under Fabricius, but with great slaughter of his own side, said to them, "Yes; but if we have such another victory, we are undone."

Francis Bacon, Basil Montagu (1844). “The Works of Francis Bacon, Lord Chancellor of England: With a Life of the Author”, p.118
Pyrrhus, when his friends congratulated to him his victory over the Romans under Fabricius, but with great slaughter of his own side, said to them, Yes; but if we have such another victory, we are undone.