One of the saddest sights to me has always been a human at a keyboard doing something by hand that could be automated. It's sad but hilarious.

Second law: The complexity barrier. Software complexity (and therefore that of bugs) grows to the limits of our ability to manage that complexity.

A good threat is worth a thousand tests.

In programming, it’s often the buts in the specification that kill you.

More than the act of testing, the act of designing tests is one of the best bug preventers known.

A design remedy that prevents bugs is always preferable to a test method that discovers them.

Bugs lurk in corners and congregate at boundaries.