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Read through the most famous quotes by topic #frontier
Right knows no boundaries, and justice no frontiers; the brotherhood of man is not a domestic institution. ↗
We find them smaller and fainter, in constantly increasing numbers, and we know that we are reaching into space, farther and farther, until, with the faintest nebulae that can be detected with the greatest telescopes, we arrive at the frontier of the known universe. ↗