Onion skin metaphor

A is wrong, philosophy is not owned by everyone, nor is it formed spontaneously, but is formed through research;

B is wrong, philosophy is not a "scientific science", and philosophy cannot replace specific science;

C is wrong, philosophy is produced in human practice, not before the production practice of material materials;

D fits the question. As can be seen from the materials, calligraphy philosophy is an abstraction and generalization of calligraphy art;

Therefore, choose D in this question.