Overview
Scout spirit is an attitude that Scouts around the world are supposed to show, based on adherence to the ideals of Scouting. Scouting's founder, Baden Powell, once said, "The spirit is there in every boy; it has to be discovered and brought to light."
The Unknown Scout
This is the oft told story of the Unknown Scout used to exemplify Scout Spirit:
And so 51-year-old William D. Boyce, newspaper and magazine publisher from Chicago, Illinois, met the founder of the Boy Scout movement, the British military hero, Lieutenant-General Robert S. S. Baden-Powell, and learned about Scouting from the chief Scout himself.
On February 8, 1910, Boyce and a group of leaders founded the Boy Scouts of America. From that day forth, Scouts have celebrated February 8 as the birthday of Scouting in the United States.
From Wikipedia (CC BY-SA 4.0).