Get the weirdnesses into the data where you can manipulate them easily, and the regularity into the code because regular code is a lot easier to work with

Don't document bad code - rewrite it.

Each new user of a new system uncovers a new class of bugs.

Controlling complexity is the essence of computer programming.

Trying to outsmart a compiler defeats much of the purpose of using one.

90% of the functionality delivered now is better than 100% delivered never.

If you're as clever as you can be when you write it, how will you ever debug it?