"You can’t know enough in a one-hour interview. So, in the end, it’s ultimately based on your gut. How do I feel about this person? What are they like when they’re challenged? Why are they here? I ask everybody that: ‘Why are you here?’ The answers themselves are not what you’re looking for. It’s the meta-data."

http://www.fastcodesign.com/1665840/an-hr-lesson-from-steve-jobs-hire-pirates