There's a peculiar courage in drawing a line and holding it, especially when the line itself feels impossibly fragile. What makes this declaration memorable isn't the defiance—any cornered creature can summon that—but rather the act of *naming* the boundary aloud, transforming private fear into public commitment. A parent who tells an addict child "you cannot return home while using drugs," or a friend who finally says "I cannot listen to this gossip anymore," discovers that the words themselves become the spine holding everything upright. The power lies not in whether you can enforce the boundary, but in the clarifying moment when you stop pretending you don't have one.