 When I was in the Navy, I went to firefighting school, and they told us in there that there was a fire triangle. The triangle had three sides. The three sides were fuel, air, and temperature. If you took away any one of the three sides of the triangle, the fire went out. And it's this sort of thing that Os Guinness is talking about when he speaks of the little triangle of assumptions upon which our freedom is based. If you take any one of the sides of the triangle away, freedom goes out.