Emerson, like his near contemporary Nietzsche, totters back and forth on that boundary. Emerson tends to get pushed into literature classes while Nietzsche gets pushed into philosophy. read more
Depends on the poem, but the difference is that philosophy is a type of thinking (or a way of life for someone like Emerson). Poetry is a communication. Every poem is about communicating something. Poems can be anything, beyond philosophy. read more