

The terms 'left-right' in politics originated during the French Revolution when members of the National Assembly who were loyal to religion and the king stood to the right of president's chair, so as to avoid the shouts and insults that came from the opposite side, where the more revolutionary members took their seat.
There is nothing more guaranteed to create conflict than opposing political views, but as John Stuart Mills said: 'Having a party of order and stability and a party of progress or reform, are both necessary elements of a healthy state of political life.'
But what makes someone a 'leftist' or a 'rightist'? Is it something that you learn from your parents, like potty training? Do we acquire our political beliefs on our own? Or do we acquire them at birth, like the color of our hair? Is it the environment or the genes?
In "Differences in negativity bias underlie variations in political ideology," John Hibbing of the University of Nebraska argues that what makes conservatives conservative, is their heightened sensitivity to negative (threatening, disgusting) stimuli in the environment. We all react to negative stimuli, which is a good thing, or we wouldn't have been able to survive as a species. Our ancestors didn't approach a saber-toothed tiger cooing 'nice kitty', but wisely followed their negative bias instinct and ran for their lives instead. Read more...