The More Optimists Succeed, the More They Succeed
The more success that confident, optimistic people experience, the more optimistic and confident they become, and the more likely they will succeed at whatever it is they try.
Optimists generally enjoy dealing with people and because they are attracted to involvement in so many activities, they will always be in contact with lots of people. They also have a well-developed sense of emotional control and aren't likely to "fly off the handle", insult people, stage little drama events just for their own aggrandizement, or whine about the weather. Optimists are usually friendly with good emotional "boundaries."
Perhaps because I grew up on this side of the border, I haven't before seen the "inspiring" Disney cartoon starring Lucky Rabbit... genius! If people can be more optimistic as individuals, as a group, as a country, then success and happiness will flourish, right?