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You can’t hurt me. Westley and I are joined by the bonds of love. And you cannot track that, not with a thousand bloodhounds, and you cannot break it, not with a thousand swords.
— Buttercup • The Princess Bride

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker says love binds two people in a way nothing physical can touch. Dogs can't sniff it out and blades can't cut it. It's a bold declaration that a bond is beyond any threat or pursuit.
Context reviewed