call it my billion-dollar mistake. It was the invention of the null reference in 1965…. My goal was to ensure that all use of references should be absolutely safe, with checking performed automatically by the compiler. But I couldn't resist the temptation to put in a null reference, simply because it was so easy to implement. This has led to innumerable errors, vulnerabilities, and system crashes, which have probably caused a billion dollars of pain and damage in the last forty years.” Tony Hoare
have seriously regressed since C developed. C has destroyed our ability to advance the state of the art in automatic optimization, automatic parallelization, automatic mapping of a high-level language to the machine.” Fran Allen
to prove any nontrivial theorem about your program will expose lots of bugs. The particular choice of theorem makes little difference! Typechecking is good because it proves lots and lots of little theorems about your program.” Benjamin C. Pierce
[Codasyl] Group started out by trying to design a language for stating procedures, but soon discovered that what was really required was a description of the data and a statement of the relationships between the data sets.” Grace Hopper