I believe the correct
answer is letters and numbers.
Paul Klee was a Swiss
German avant-garde artist, which individual style was influenced by movements
in art that included Expressionism, Cubism, Abstraction and Surrealism. Klee is
known for frequently using letters and numbers, which he combined with playful
figures of animals or people.
“after that let’s visit your birth hospital to get the part of your brain that can make good insults”