"When you design it, think how you would feel if you had to fly it! Safety first!"

This quote by Donald Wills Douglas is a pointer to designers of aircraft to constantly prioritize safety when developing an aircraft. Douglas is emphasizing the significance of creating an airplane with security in mind, as if the designer was the one who would be flying the aircraft. He is recommending that designers ought to think of how they would feel if they were the ones who had to fly the airplane, and to develop it with that in mind. This quote is a reminder to designers to always prioritize safety when designing an aircraft, and to consider how they would feel if they were the ones who had to fly the airplane. Douglas is emphasizing the value of developing an aircraft with security as the leading priority, and to consider how they would feel if they were the ones who needed to fly the airplane. This quote is a tip to designers to always keep security in mind when creating an aircraft, and to think about how they would feel if they were the ones who had to fly the aircraft.