There was great uncertainty about how well we would be able to walk in our cumbersome pressurized suit. - Neil Armstrong

Houston, Tranquility Base here. The Eagle has landed.

I remember on the trip home on Apollo 11 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.

Thank you, Mr. Chairman. I am in the position of a pilot without his checklist, so I'll have to wing it a bit. ... [Prior to the Apollo missions,] no one knew what kind of person could be persuaded to take the trip. Prisoners were suggested. Soldiers could be ordered. Photographers could take pictures — and they're expendable. Doctors understood the limits of human physiology. Finally, both sides picked pilots.