"The best dividends on the labor invested have invariably come from seeking more knowledge rather than more power."

"We have been making flights of over an hour in length."

"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 every time I think that a particular thing will not be done, I recall t…"

"We learn much by tribulation, and by adversity our hearts are made better."

"It was impossible to convince the people generally that we were not a pair of lunatics."