The dream of piloting an airplane as free as a bird appeals to many, but is actually experienced by relatively few. The explanation of why they do fly is varied, but appears to have to do with a balance between the thrill of it all and the inherent risks involved.
"For some time now, I've been afflicted with the belief that flight is possible to man. My disease has increased in severity and I feel that it will soon cost me an increased amount of money, if not my life." Wilbur Wright
"I fly because it releases my mind from the tyranny of petty things." Antione De Saint-Exupery
"Courage is doing what you are afraid to do. There can be no courage unless you're scared." Eddie Rickenbaker
"Ten years spent as a pilot on an airplane is in value worth more than an ordinary lifetime." Charles Lindberg