Whether it's “can’t we all just get along” or “agree to disagree”, not everyone embraces an argument when it arrives.

But Lee Siegel argues that argument is essential: to the individual, to art, and to society. Argument leads to change and it helps us to understand the world.

Whether that argument plays out in political platforms, in art, or, increasingly, online, it’s a way of understanding the other side and convincing them that your point of view is better.