I have this dog named Marley, and it is a kind of love I had never known. I have a hard time believing Marley did not come from my body. I know that sounds insane, but I feel that connected to her. She made me realize I wanted to adopt children.
We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve.