Focus affords its practitioner uncommon levels of intensity and discipline, which often lead to extraordinary accomplishment.

FORBES: Great Leaders Have It - Do You?

Moderate amounts of stress help people perform tasks more efficiently and lead to a sense of accomplishment.

BBC: Is stress good for you?

"This is truly an impressive accomplishment and I am proud to lead this company as we celebrate this success, " said Steve Luczo, president, CEO and chairman of Seagate.

ENGADGET: Seagate ships two billion hard drives, sold half of them in the last four years