1) Any Given Program, When Running, Is Obsolete. (2) Any Given Program Costs More And Takes Longer.

(1) Any given program, when running, is obsolete.
(2) Any given program costs more and takes longer.
(3) If a program is useful, it will have to be changed.
(4) If a program is useless, it will have to be documented.
(5) Any given program will expand to fill all available memory.
(6) The value of a program is porportional to the
weight of its output.
(7) Program complexity grows until it exceeds the capability of the
programmer who must maintain it.
(8) Make it possible for programmers to write programs in
English, and you will find that programmers cannot write
in English.
-- Laws of Computer Programming
-- SIGPLAN Notices, Vol 2 No 2