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.

If the objective of testing were to prove that a program is free of bugs, then not only would testing be practically impossible, but it would also be theoretically impossible.

A test that reveals a bug has succeeded, not failed.

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.

Testing proves a programmer’s failure. Debugging is the programmer’s vindication.

If you can't test it, don't build it. If you don't test it, rip it out.