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.

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

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

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

Copy and paste is a design error.

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'.