<http://schema.org/description>
"We hear news of violent acts of all sorts committed by humans every day. But how do we become violent? Is it something we learn, or are people violent at birth? And is there anything that can stop it?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/life/why-are-we-violent.htm/printable>