The only way to go fast, is to go well.

Some folks think that Agile is about going fast. It’s not. It’s never been about going fast. Agile is about knowing, as early as possible, just how screwed we are.

You should plan on working 60 hours per week. The first 40 are for your employer. The remaining 20 are for you. During this remaining 20 hours you should be reading, practicing, learning, and otherwise enhancing your career.