Discipline Quote by Gerald M. Weinberg

“Dijkstra once said, “Testing shows the presence, not the absence, of bugs.” In other words, a program can be proven incorrect by a test,…

— Robert C. Martin

Program testing can be used to show the presence of bugs, but never to show their absence!

— Edsger Dijkstra

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

— Boris Beizer

“we just don't have the time to go chasing after bugs that the automated tests could have found for us. We have to spend…

— Andrew Hunt

“The problem that Dijkstra recognized, early on, was that programming is hard, and that programmers don’t do it very well.”

— Robert C. Martin

Programming is the art of algorithm design and the craft of debugging errant code.

— Ellen Ullman

Programming is one of the most difficult branches of applied mathematics; the poorer mathematicians had better remain pure mathematicians.

— Edsger Dijkstra

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

— Boris Beizer

I'm not saying we purposely introduced bugs or anything, but this is kind of a natural result of any complexities of software... that you…

— Will Wright

“Programming was very different from mathematics, as it was far more creative. In math, there was one right answer, and you worked at a…

— B.V. Larson

The real value of tests is not that they detect bugs in the code but that they detect inadequacies in the methods, concentration, and…

— Tony Hoare

“Remember, though, that debugging is as much art as it is computer science [..]”

— Michael A. Vine