From the time we are born, successfully reaching our goals is dependant upon influencing others. And as we grow, we hone those skills. A baby must influence his or her parents to feed him. A child influences his or her parents for a bike. A teenager has to influence the person they fancy so they can get a date. The person who graduates college must influence their potential boss to give them a job. Salespeople must influence prospective buyers—if they want to eat well! You see, all of life is sales, and all of sales is influence.”