Nature vs Nurture is a term used on whether the presonality, behavior, intellectuality, etc. comes from heredity or it is because of the environment in which the person is. Nature is something in which a human gets through genetics, while Nurture is something that the person gets through experience and the way you grow in the environment. This term was by English Francis Galton (1822 - 1911). He got this idea through the motivation of Darwin's "Origin of Species" book.
The overall belief is the Nurture is shown more relevant than nature. Nature is something that passes the genetics and the way you are, but Nurture is the side that can affect you through your life development. It is the side that depending on the environment you are, you can change many of your aspects, because the people that surrounds you are the main factors which can change the way you were born (personality, behavior, intelligence, etc.)
I think that it is true because Nurture is the main thing and the one which makes you follow the fate you are. If Nurture improves your cleverness and personality, then you can succeed, whether or not you had genetics of other aspects, like being less clever and/or having another type of personality.
Works Cited
What does "nature versus nurture" mean? http://www.cliffsnotes.com/Section/What-does-nature-versus-nurture-mean-.id-305406,articleId-36981.html August 27, 2010.