Quote

Aerodynamics is mathematics for those who haven't learned to do calculus. In my case, too, for one who hasn't learned to add or multiply, at least the first time.

Trying to build a spaceship by making an aeroplane fly faster and higher is like trying to build an aeroplane by making locomotives faster and lighter - with a lot of effort, perhaps you could get something that more or less works, but it really isn't the right way to proceed.

When a man has seen the aerodynamic shape of a Caravelle jet at an airport, he doesn't need aerodynamic furniture.

Rocket engines generally are simpler than jet engines, not more complicated.

It is possible to fly without motors, but not without knowledge and skill.

I thought that automobiles were going to have mufflers and go fast and airplanes were going to fly fast.

Flying cars are not a very efficient way to move things from one point to another.

I have always felt it is my destiny to build a machine that would allow man to fly.