When Horace Walpole Said "This World Is a Comedy to Those

When Horace Walpole said "This world is a comedy to those that think, a tragedy to those that feel," he was probably NOT thinking

A) that life is often filled with irony.
B) that people are emotional beings.
C) one should think about one thing profoundly and a thousand things well.
D) that human beings might be the only living creatures capable of laughter.