The real value of tests is not that they detect bugs in the code, but that they detect inadequacies in the methods, concentration, and skills of those who design and produce the code.
“Our hiring was always focused on people right out of school. We had a few key hires like Charles Simonyi who came in with experience. But most of our developers, we decided that we wanted them to come with clear minds, not polluted by some other approach, to learn the way that we liked to develop software, and to put the kind of energy into it that we thought was key.”
“Who can afford to do professional work for nothing?”