Andrew bryant of the new york times interviewed the ceo of aruba networks, who said he valued a mentor he had at hewlett packard several years earlier. in reference to his former mentor, the ceo recalled: “basically, he would push you and give you as much as you could handle until you started failing. he would encourage you to not be afraid of failing-because when you start failing, that’s when you know where your limit is, and then you can improve around that. so he actually sometimes would reward failure because that means that you have pushed yourself.” the ceo was describing a former mentor who his employees.