There comes a time when one must stop suggesting and evaluating new solutions, and get on with the job of analyzing and implementing one pretty good … - Robert E. Machol

Scientists possess healthy skepticism. They realize that you've got to know the answer before you measure it.

There are four distinct bases on which a system-design book might be organized. First are the chronological phases through which the system-design effort passes, such as organization and preliminary design. Second are the logical steps such as analysis of the single thread (operation on a single input) and high traffic (methods of handling multiplex inputs). Third are the parts of the system, such as communications and displays. Fourth are the tools of system design, such as information theory and queueing theory.

Mathematicians are there to find the constraints and to eliminate those things that aren't constraints... I know this will surprise many of you, but they are useful!