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As the first human to land on any world outside the Earth, and probably the first living creature of any sort to come from the Earth and reach the Moon, his legacy will be safe as long as intelligent life survives in this corner of the cosmos.

"NSS Mourns Neil Armstrong – Calls for Renewed Emphasis on Human Space Exploration". www.nss.org. August 26, 2012.
As the first human to land on any world outside the Earth, and probably the first living creature of any sort to come from the Earth and reach the Moon, his legacy will be safe as long as intelligent life survives in