Thoreau's invitation isn't merely about nonconformity for its own sake—it's a quiet argument that authenticity requires *active resistance* to the machinery of social expectation. Most people hear "be yourself" as permission to relax, when really he's asking something harder: to listen inward with the same attention others demand you give their approval. Consider the person who leaves a prestigious career to start over in something humbler—they're not being bold in some romantic sense, but rather honest about what rhythm their life actually keeps. That's the corrective his words offer: marching to your own beat isn't defiance; it's the only way to stop walking in someone else's direction.