32

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from him. But the idea that Doctors A and B
can each supply the other with the very same
information or with information virtually the same is ridiculous. I maintain that
no two sciences can depend, each upon results of the other for principles
without which it cannot exist as a science.
Now all the special sciences,—in particular, dynamics
the most fundamental of the physical
sciences and the doctrine science of association the most
fundamental of the psychical sciences, both—
depend for their existence as sciences upon
principles which only metaphysics can the metaphysician can properly
discuss. To show how differently the ultra empiricists
think, I will quote a sentence from the second edition of
Wundt's 'System der Philosophie.' He says: "Ich muss
zugeben: wenn man es als ein Axiom betrachtet,

31

from him. But the idea that Doctors A and B
can each supply the other with the very same
information or with information virtually the same is ridiculous. I maintain that
no two sciences can depend, each upon results of the other for principles
without which it cannot exist as a science.
Now all the special sciences,—in particular, dynamics
the most fundamental of the physical
sciences and the doctrine science of association the most
fundamental of the psychical sciences, both—
depend for their existence as sciences upon
principles which only metaphysics can the metaphysician can properly
discuss. To show how differently the ultra empiricists
thing, I will quote a sentence from the second edition of
Wundt's 'System der Philosophie.' He says: "Ich muss
zugeben: wenn man es als ein Axiom betrachtet,