Metaphysics means nothing but an unusually obstinate effort to think clearly. The fundamental conceptions of psychology are practically very clear to us, but theoretically they are very confused, and one easily makes the obscurest assumptions in this science without realizing, until challenged, what internal difficulties they involve.

Summary

This quote highlights the importance of metaphysics as a tool for clear thinking and understanding. It suggests that metaphysics serves to unravel the complexities and confusion behind fundamental concepts in psychology. While these concepts may seem clear on a practical level, the quote points out that they can be muddled on a theoretical level, leading to the formation of vague assumptions. Metaphysics, therefore, offers a critical perspective to challenge and expose these internal difficulties, encouraging a clearer and more precise understanding of psychological concepts.

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