Learning research tells us that the time lag from experiment to feedback is critical.

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

Testing is not the point. The point is about responsibility.

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

Make it work, make it right, make it fast.

Learning research tells us that the time lag from experiment to feedback is critical.

Optimism is an occupational hazard of programming; feedback is the treatment.