Linear models tend to define relationships in terms of roles rather than people: the boss rather than the person actually exerting influence. The org… - Gerald M. Weinberg

If a program doesn’t work, measures of efficiency, of adaptability, or of cost of production have no meaning.

If you don't have questions about a product's risks, then there's no reason to test. If you have at least one such question, then ask: Will these tests cost more to execute than their answers will be worth?

Programming is generally a manual operation — we laugh when someone asks us to “say something in FORTRAN.” It is a written language, and in spite of its resemblance to other written languages, it differs from them in not having a speech system behind it. Not that written languages are simple transcriptions of speech, not at all; but a written language such as English is strongly influenced by its relationship to a spoken language. This influence is not so strong in other written languages, such as those using the Chinese writing system, but the influence — the mutual influence — always exists.