Tip - Never motivate them, it does not work

Never motivate them, it does not work.  Motivation is internal and you can't just get by someone talking to you for few minutes. You must have a desire to do well to begin with, only than any external force can work.  Best thing to do is to make sure you take your time at hiring and only hire people who are a good fit for you and your team.  Be very clear and upfront for your expectations, if they still show desire to join, then take them on. 

There are lots of good ethical people out there, we are too lazy when it comes to hiring. If you take your time before hiring, you will be able to pick employees who will do their best.  Just be fair and Appreciate their efforts.