From your own experience, which of the two has the greater influence in shaping a person's character?
Please give an example. Don't even think of looking at Wiki before you answer, or I will come and get you.
No one knows. A bit of both I think.
My sister and I were brought up by the same parents in the same house. She is very chatty and sociable. I’m a quiet (would love to be) recluse.