I love Joel Spolsky

[oryx_and_crake]

With dogs the main trick to training is that feedback has to be immediate. If you come home to discover that, hours before, the dog tipped over the garbage can in the kitchen, it’s too late for training. You can yell at her but she just won’t get what you’re going on about. Dogs are just not that smart.

For programmers, getting better at what you do requires quick feedback, positive and negative, on what you’ve just done. The faster you get the feedback, the faster you’ll learn.