A good piece if you are in charge of hiring or just getting started:  

Nice people care if you like them; good people care about you. Nice people stretch the truth; good people don’t. If you tell a nice person to do something evil, they might do it because they do not want to upset you; a good person will refuse to do it.

You might think you are a good person, but you are fallible, so if you want to avoid inadvertently doing something evil you must surround yourself with good people, not nice people.

How do you separate the good from the nice? If you do what I do, it will be a piece of cake.

Nice people will allow you to hire them even if they know they are not among your best candidates; a good person won’t let you hire them unless that is what is best for you.

Find the people worth working with who will keep you honest and challenge you. Don’t sell yourself or your company short by being afraid to say, I need good, honest people, not nice people.