One of my most productive days was throwing away 1,000 lines of code.
When in doubt, use brute force.
You can't trust code that you did not totally create yourself.
If you want to go somewhere, goto is the best way to get there.
In fact, we started off with two or three different shells and the shell had life of its own.
We have persistent objects, they're called files.
A well installed microcode bug will be almost impossible to detect.
The X server has to be the biggest program I've ever seen that doesn't do anything for you.
It's always good to take an orthogonal view of something. It develops ideas.
I think the major good idea in Unix was its clean and simple interface: open, close, read, and write.
I don't think there are many people up in research who have strong ideas about things that they haven't really had experience with.
I have to keep up with the scientific literature as part of my job, but increasingly I found myself reading things that weren't really relevant to my academic work, but were relevant to gardening.
No amount of source-level verification or scrutiny will protect you from using untrusted code.
I wanted to separate data from programs, because data and instructions are very different.
FORTRAN was the language of choice for the same reason that three-legged races are popular.
I am a very bottom-up thinker.
SCCS, the source motel! Programs check in and never check out!
In college, before video games, we would amuse ourselves by posing programming exercises.
There's a lot of power in executing data - generating data and executing data.
I wanted to avoid, special IO for terminals.
It is only the inadequacy of the criminal code that saves the hackers from very serious prosecution.
For most of that time, I've also been a keen gardener, but for many years I failed to make the connection between gardening and science.
The average gardener probably knows little about what is going on in his or her garden.
On the one hand, the press, television, and movies make heroes of vandals by calling them whiz kids.
That brings me to Dennis Ritchie. Our collaboration has been a thing of beauty.
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