People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.
释义:聪明人舍弃短处,发挥长处,致使取得成功。  
领导力在于因为你的存在而让他人变得更好,并确保这种影响在你离开后依然持续。