[It is a] well-known fact that the likely contacts of two individuals who are closely acquainted tend to be more overlapping than those of two arbitrarily selected individuals.
"Social Networks: A Developing Paradigm" by Samuel Leinhardt, (p. 350), 1977.
![[It is a] well-known fact that the likely contacts of two individuals who are closely acquainted tend to be more overlapping than those of two arbitrarily selected individuals.](http://cdn.quoteddaily.com/images/anatol-rapoport/it-is-a-well-known-fact-that-the-likely-contacts-of-two-individuals-who-are-closely-acquainted-tend-to-be.jpg)