One man's constant is another man's variable.
Every program has (at least) two purposes: The one for which it was written and another for which it wasn't.
The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information.
Don't have good ideas if you aren't willing to be responsible for them.
Computer Science is embarrassed by the computer.
It goes against the grain of modern education to teach students to program. What fun is there to making plans, acquiring discipline, organizing thoughts, devoting attention to detail, and learning to be self critical.
If you have a procedure with 10 parameters, you probably missed some.
Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it.
Symmetry is a complexity-reducing concept (co-routines include subroutines); seek it everywhere.
We toast the Lisp programmer who pens his thoughts within nests of parentheses.
Dealing with failure is easy: Work hard to improve. Success is also easy to handle: You've solved the wrong problem. Work hard to improve.
I think it is inevitable that people program poorly. Training will not substantially help matters. We have to learn to live with it.
It is easier to change the specification to fit the program than vice versa.
Some programming languages manage to absorb change, but withstand progress.
In software systems it is often the early bird that makes the worm.