David Parnas Quotes

Copy and paste is a design error.

One bad programmer can easily create two new jobs a year.

Artificial intelligence has the same relation to intelligence as artificial flowers have to flowers.

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.

Whenever anyone says, 'theoretically', they really mean, 'not really'.

Find the simplest model that is not a lie is the key to better software design.

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

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.