Even the best planning is not so omniscient as to get it right the first time..

The more highly adapted an organism becomes, the less adaptable it is to any new change..

After you finish the first 90% of a project, you have to finish the other 90%..

Not only is UNIX dead, it's starting to smell really bad..

Code never lies, comments sometimes do..

A brute force solution that works is better than an elegant solution that doesn't work..

The unavoidable price of reliability is simplicity..

There is this thing called the GPL (Gnu Public Licence), which we disagree with... nobody can ever improve the software..

In the beginning we must simplify the subject, thus unavoidably falsifying it, and later we must sophisticate away the falsely simple beginning..

In programming, it’s often the buts in the specification that kill you..

Bugs lurk in corners and congregate at boundaries..

A good threat is worth a thousand tests..

Here is a language so far ahead of its time, that it was not only an improvement on its predecessors, but also on nearly all its successors..

The system is only as good as the person programming it. If you don't have the follow-through, your system is useless. And by the way, it's that way ….

Every program attempts to expand until it can read mail. Those programs which cannot so expand are replaced by ones which can..

Language serves not only to express thought but to make possible thoughts which could not exist without it..

With diligence it is possible to make anything run slowly..

Don't worry about how things are. Watch where they are headed..

Adding manpower to a late software project makes it later.

And C++ programming languages, we own those, have licensed them out multiple times, obviously. We have a lot of royalties coming to us from C++..

By the 2030s, the nonbiological portion of our intelligence will predominate..