Pretty good testing is easy to do. Excellent testing is quite hard to do.
Without requirements or design, programming is the art of adding bugs to an empty text file.
Code is like humor. When you have to explain it, it’s bad.
As ironic as it seems, the challenge of a tester is to test as little as possible. Test less, but test smarter.
Testing is a skill. While this may come as a surprise to some people it is a simple fact