Make sure that you have the right people working…
Make sure that you have the right people working with you and that they will be providing you with positive energy and eliminate anybody that is providing you with negative energy.
— from Fuel (Energy)
In the book
The rule that follows is to fuel your ride with positive energy, because enthusiasm is contagious — it tends to draw good people toward you and to energize the ones already in your formation. And the discipline that follows that is to guard the tank fiercely: allow no energy vampires aboard, the people who drain you and leave you wondering when they will finally leave; surround yourself instead with the people who fill you, not those who empty you. Complaining, by the way, is simply negative energy leaving your own mouth — pour out enough of it and you become an energy vampire to everyone around you. — Fuel (Energy)