I've known people who have not mastered their tools who are good programmers, but not a tool master who remained a mediocre programmer.

I don't like the feeling, but I've got to say that a little fear makes me a more focused, more responsible programmer.

If testing costs more than not testing, then don't test.

If you're having trouble succeeding, fail.

Responsible Development shares many practices with XP but the roots are different. Responsible Development's values are honesty, transparency, accountability and responsibility. These lead me to pairing, test-first, incremental design, continuous integration and so on because they support the values.

I mean, source code in files; how quaint, how seventies!

The business changes. The technology changes. The team changes. The team members change. The problem isn't change, per se, because change is going to happen; the problem, rather, is the inability to cope with change when it comes.