In the context of starting a company, this is pretty wise advice.
Do you hire people who are brilliant but ethically questionable (and might stab you in the back one day for an advantage), or do you hire people who are merely great ... but will stay and struggle with you when the inevitable hard times come?
Do you hire people who are brilliant but ethically questionable (and might stab you in the back one day for an advantage), or do you hire people who are merely great ... but will stay and struggle with you when the inevitable hard times come?