It is possible to fly without motors, but not without knowledge and skill.
Sentiment: POSITIVE
Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible.
We weren't built to fly. We can do it, but we shouldn't be surprised if it feels a little unnatural.
Flying cars are not a very efficient way to move things from one point to another.
You can do a no-fly zone without ground forces.
No amount of skillful invention can replace the essential element of imagination.
I have always felt it is my destiny to build a machine that would allow man to fly.
It turns out that if you optimize the performance of a car and of an airplane, they are very far away in terms of mechanical features. So you can make a flying car. But they are not very good planes, and they are not very good cars.
One who has imagination without learning has wings without feet.
Really, anyone can learn how to fly. If you can drive a bus, you can fly an airplane.
In order to fly, all one must do is simply miss the ground.