Only poetry stands in the same order as philosophy and its thinking, though poetry and thought are not the same thing. To speak of nothing will always remain a horror and an absurdity for science. But aside from the philosopher, the poet can do so - and not because, as common sense supposes, poetry is without strict rules, but because the spirit of poetry (only authentic and great poetry is meant) is essentially superior to the spirit that prevails in all mere science. By virtue of this superiority the poet always speaks as though the essent were being expressed and invoked for the first time. Poetry, like the thinking of the philosopher, has always so much world space to spare that in it each thing - a tree, a mountain, a house, the cry of a bird - loses all indifference and commonplaceness.
(Heidegger, An Introduction to Metaphysics, translated
by Ralph Manheim, Yale University Press, 1987)
Uma questão que tem de se pôr: como é que Heidegger define "authentic and great poetry"?