Copy and paste is a design error.

As a rule, software systems do not work well until they have been used, and have failed repeatedly, in real applications.

There are no standards for computer programmers and no group to certify them.

I have found that the reason a lot of people are interested in artificial intelligence is the same reason a lot of people are interested in artificial limbs: they are missing one.

Complexity is not a goal. I don't want to be remembered as an engineer of complex systems.

Requirements in mathematical language are no use unless they are easier to read than the code.

We must not forget that the wheel is reinvented so often because it is a very good idea; I've learned to worry more about the soundness of ideas that were invented only once.