As one of my professor said, the happier you are; the more probable that you will fail. The more miserable and desperate you are; your chances to succeed suddenly skyrockets.
Courage and drive for achievement is a kind of salvation. While hunger, or even emptiness, drives achievement; love almost always interferes with appetite. When someone is sufficient in making you feel complete, you don't need the fame or wealth or success to testify your worth, and thus you don't seek it. You don’t want to work in the top companies in the world; instead, you move to the countryside in a safe home with your love.
…but remember that achievement does not necessarily mean success. No matter where you go or how high you climb, a place is only as good as the people you know in it.