Donald Wills Douglas — American Aviator born on April 06, 1892, died on February 01, 1981

Donald Wills Douglas, Sr. was an influential American aircraft industrialist and engineer... (wikipedia)

Dream no small dream; it lacks magic. Dream large. Then make the dream real.
When the weight of the paper equals the weight of the airplane, only then you can go flying.
When you design it, think how you would feel if you had to fly it! Safety first!