Who said "The secret of flight is no secret; it is simply to fly."?

This quote is attributed to Wright Brothers.

The secret of flight is no secret; it is simply to fly. - Wright Brothers

"The secret of flight is no secret; it is simply to fly."

Wright Brothers

Aviation Pioneers American 1867–1912

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

"The Wright brothers flew right through the smoke screen of impossibility."

"More than anything else the sensation is one of perfect peace mingled with an excitement that strains every nerve to the utmost."

"The only way to invent in aeronautics is by actual work."