We are stimulated to emotional response, not by works that confirm our sense of the world, but by works that challenge it. - Joyce Carol Oates
They want to be stimulated. They want to read something that can get under their skin and hang out there for a while. - Alistair Cross
We do not belong to those who have ideas only among books, when stimulated by books. It is our habit to think outdoors - walking, leaping, climbing, dancing, preferably on lonely mountains or near the sea where even the trails become thoughtful. - Nietzsche
... he preferred being stimulated to being bored. - Ruth Harris