"Producers think in the language of abundance rather than scarcity, take initiative instead of waiting for someone else to provide them with opportunity, and boldly venture wise risks instead of surrendering to fear that they can't make a difference."

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While civilization is more than a high material living standard, it is nevertheless based on material abundance. It does not thrive on abject poverty or in an atmosphere of resignation and hopelessness. Therefore the end objectives of solar system exploration are social objectives in the sense that they relate to, or are dictated by, present and future human needs.

— Krafft Arnold Ehricke