"If we worked on the assumption that what is currently accepted as true really is true, then there would be little hope for advance."

"The desire to fly is an idea handed down to us by our ancestors who, in their dim terrestrial captivity, looked enviously on the birds soaring freely through space…"

"Instead of falling to the floor, as we expected, it flew across the room till it struck the ceiling, where it fluttered awhile, and finally sank to the floor."

"We were confident that we had solved the problem of human flight."

"I confess that in 1901 I said to my brother Orville that man would not fly for 50 years. Ever since I have distrusted myself and trusted him."