Imagine a world where nearly everyone wakes up inspired to go to work, feels trusted and valued during the day, also returns home feeling fulfilled. This isn't a crazy, idealized notion. moment, in numerous successful associations, great leaders produce surroundings in which people naturally work together to do remarkable effects. In his work with associations around the world, Simon Sinek noticed that some brigades trust each other so deeply that they would literally put their lives on the line for each other. Other brigades, no matter what impulses are offered, are doomed to dissension , fragmentation and failure. Why? The answer came clear during a discussion with a Marine Corps general." Officers eat last," he said. Sinek watched as the most inferior Marines ate first while the most elderly Marines took their place at the reverse of the line. What is emblematic in the chow hall is deadly serious on the battleground Great leaders immolate their own comfort-- indeed their own survival-- for the good of those in their care. Too numerous workplaces are driven by cynicism, paranoia, and tone- interest. But the stylish bones foster trust and cooperation because their leaders make what Sinek calls a" Circle of Safety" that separates the security inside the platoon from the challenges outdoors. Sinek illustrates his ideas with fascinating true stories that range from the service to big business, from government to investment banking.