The circumstances of our births are instrumental in determining who we are to become. However, to what degree do they cement our fates and make up who we are as people? The question of whether our innate human nature or the conditions of our nurturing throughout childhood have a greater role to play in our development is a hotly debated one. And the truth is that we have no way of knowing the scientifically-accurate answer. The question is a matter of hypotheticals - if we perform an experiment in which twins are reared separately to see how they differ in personalities when nature is kept the same but nurture is modified, not only are there too many other variables to account for, but we have no way of comparing the results to those had we kept the twins together. However, as humans we feel responsible for what we willingly choose and control, and when it comes to the course of our life, there is a lot we can control. It may be argued, then, that although nature affects our options, it is nurturing and the choices we and others willingly make that are the essence of what makes us uniquely human and individual.