Neil Alden Armstrong will forever be remembered as the first person to set foot on the surface of the Moon. His one small step indeed became a giant symbol of one of mankind's greatest achievements. To honor the 40th anniversary of that amazing feat, I'll share to you some of the most memorable and interesting quotes made by Neil Armstrong:

1. "It's a brilliant surface in that sunlight. The horizon seems quite close to you because the curvature is so much more pronounced than here on earth. It's an interesting place to be. I recommend it."

2. "It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small."

3. "Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind."

4. "Mystery creates wonder and wonder is the basis of man's desire to understand."

5. "Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10."

6. "Houston, Tranquility Base here. The eagle has landed."

7. "I believe that the Good Lord gave us a finite number of heartbeats and I'm damned if I'm going to use up mine running up and down a street."

8. "I was elated, ecstatic and extremely surprised that we were successful."

9. "The important achievement of Apollo was demonstrating that humanity is not forever chained to this planet and our visions go rather further than that and our opportunities are unlimited."

10. And perhaps the most famous quote ever made: