Pauli letter collection: letter to Markus Fierz

Pauli writes on the limitations of the general theory of relativity, on the concept of space in the Renaissance, on the concepts of the neoplatonic world-soul and its replacement by mathematics and measurement in the 17th century, on the modified return of these neoplatonic ideas in quantum theory and on the need for a new conception and a new terminology, as e.g. "automorphism".