Wittgenstein's remarks invoking aspect-perception highlight his overall development as a philosopher. Like Kant, Wittgenstein hoped to reorient the notion of "discovery" as it plays a role in discussions of logic, mathematics, and philosophy, critiquing the idea that the mathematician or philosopher uncovers surprising novel facts and objects. Unlike Kant, Wittgenstein replaces this with the idea that the mathematician allows us to "see the value of a mathematical train of thought in its bringing to light something that surprises us". Wittgenstein therefore points toward the importance of active arrangement of concepts and symbols, open-ended self-discovery, pleasure, and absorbed intuitive preoccupation with diagrams and symbols as ineradicable features of our philosophical, logical, and mathematical activities. There is nothing objectionable per se, on Wittgenstein's view, with relying on pictures, diagrams, and other visible symbolic and representational structures.