One mark of an idea that is hard to keep hold of is that the writer will contradict himself; it takes distance and time to see the convergence of opposites.
Abraham Lincoln was the classic American statesman. He was democratic in the breath of his sympathy, republican in his regard for political law and order. He made the institution of the presidency what it is: the most powerful executive office created by free people.
Tragedy is not bigger, but has more functioning parts. It is more complex, therefore tragedy is a larger and higher form of art. This is what happens when the literary critic is a biologist.