It will free man from the remaining chains, the chains of gravity which still tie him to this planet.

Von Braun frames spaceflight as a decisive stage in human emancipation: after overcoming political, social, and technological limits, humanity still remains physically bound by Earth’s gravity. The “chains of gravity” metaphor casts the planet’s gravitational well as a literal constraint on human possibility—mobility, resources, perspective, and survival. Read this way, the quote is not merely technical (about escape velocity) but civilizational: leaving Earth enables new domains of exploration and development and potentially reduces existential vulnerability by extending human presence beyond a single world. It also reflects a mid‑20th‑century, progress-oriented rhetoric common in early space advocacy, where space travel is imagined as a moral and historical liberation.