Neil Armstrong, America's greatest hero, writes to a teacher about the importance of research and knowledge.

• Letter written by Neil Armstrong in response to a request from a friend who is a teacher at a school in the United States.
• Letterhead with NASA logo.
• One page.
• In English.
• 20 cm x 26 cm.
• United States, undated.
• Good condition despite the paper being a little yellowed, with some moisture stains: the document is definitely protected with a special plastic film.
• Unique piece.

Dear Debbie,

Thank you for the letter you sent me on behalf of your school. I thank you for your kind words and would like to express my best wishes for the success of the next semester to you and your students. Knowledge is fundamental to all human achievement and to progress in general. It is the driving force and the goal that drives humanity forward. This search for knowledge took men to the moon. But it also took a lot of knowledge already acquired to get there.

I hope that your efforts in your current or future studies bear fruit.

Yours sincerely,

Neil Armstrong

Neil Armstrong (1930 - 2012) became a national and international hero when he was the first man to step on the Moon, as commander of the Apollo 11 mission, on July 20, 1969. His famous phrase "That's one small step for man, one giant leap for mankind" went down in history.

Neil Armstrong retired from NASA in 1970 and became a professor of aerospace engineering at the University of Cincinnati until 1979. He turned down several million-dollar offers and maintained a low-key life, away from the public eye, until his death at the age of 82.

US President Barack Obama called him "one of the greatest American heroes, not just of his time, but of all time."

Documents signed by Neil Armstrong are among the most sought after by autograph collectors around the world, a trend that will expand the celebrations of the 50th anniversary of the first moon landing in 2019. Even rarer are documents with interesting content, which makes this letter - in which Armstrong speaks of the importance of research and knowledge - an exceptional document.