Why You Must Burn Bridges To Become Great.

The great thing about great people.

Image by Keith Lance from Getty Images

In 1954 when Ray Kroc joined the McDonald brothers, he immediately believed that McDonald’s was the future of fast-food in America — and the world.

Kroc’s story is famous at some point: the traveling salesman that deduced the most effective real estate formula the world has ever seen. But what many people…