I often speak about the value of hard work, but hard work is not enough. I’ve seen many people sabotage their career before it’s even started by refusing to do anything unless they’re compensated or rewarded directly for it. Or they become bitter, expecting that they’ll be rewarded in exchange for just working hard. One of the key factors for success—beyond work, talent, timing, relationships, and all the other qualities I’ve mentioned—is the glue that holds all of these together: commitment.

