"We did not have a university education, but we had a good deal of common sense."

"We could not understand why the calculation of Lilienthal and others were so much in error."

"The machine has been flown in all sorts of weather."

"The desire to fly is an idea handed down to us by our ancestors who, in their weary journeys over endless plains, yearned for a swifter and less laborious mode of travel."

"The flying machine which will really fly might be evolved by the combined and continuous efforts of mathematicians and mechanicians in from one million to ten million years — provided, of course, we c…"