David Dana Clark is an American computer scientist. From 1981 to 1989, he acted as chief protocol architect in the development of the Internet, and chaired the Internet Activities Board, which later became the Internet Architecture Board. He has also served as chairman of the Computer Sciences and Telecommunications Board of the National Research Council. He is currently a Senior Research Scientist at the MIT Computer Science and Artificial Intelligence Laboratory.

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• We reject: kings, presidents and voting.
  We believe in: rough consensus and running code.
  • (Presentation given at the 24th Internet Engineering Task Force)
    • • frequently cited as the motto of the Internet engineering community