It is by imagination that knowledge is “carried to the heart” (to borrow again from Allen Tate). The faculties of the mind—reason, memory, feeling, intuition, imagination, and the rest—are not distinct from one another. Though some may be favored over others and some ignored, none functions alone. But the human mind, even in its wholeness, even in instances of greatest genius, is irremediably limited. Its several faculties, when we try to use them separately or specialize them, are even more limited.
Wendell Berry’s Jefferson Lecture in the Humanities http://www.neh.gov/about/awards/jefferson-lecture/wendell-e-berry-lecture