1. There Can Be No Thought of Finishing

    Pan-American

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  2. For Aiming At the Stars

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  3. Both Literally and Figuratively

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  4. Is a Problem to Occupy Generations

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  5. So That No Matter

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  6. How Much Progress One Makes

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  7. There Is Always the Thrill of Just Beginning

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  8. Dr. Robert Godard

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  9. In a Letter to H. G. Wells, 1932

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