 Finally, like predecessors in the Rationalist tradition and Kant, Herder sharply rejects the Cartesian idea of the mind’s self-transparency—instead insisting that much of what occurs in the mind is unconscious, so that self-knowledge is often deeply problematic. In addition, he identifies literature (e.g., Shakespeare) as an especially rich source of insights into the unconscious. This is another compelling position that has had a strong influence on subsequent thinkers (both in the philosophy of mind and in hermeneutics).