"We have to start from scratch. The only information we have concerns the organization's structure. Let's start from there. It's a pyramid organization made up of a series of sections. These sections, in turn, are made up of triangles. At the apex is the Executive Bureau. The military head of the Executive Bureau finds a competent person and names him section head: No. 1. No. 1 finds two others: Nos. 2 and 3. This makes up the first triangle. Now Nos. 2 and 3 each select two men: Nos. 4, 5, 6 and 7. The reason for these geometrics is that each organization member knows only three other members. The one who chose him and the two he himself chose. Contact is made only in writing. That's why we don't know our adversaries. Because, in point of fact, they don't know each other."