The Lethean Library, despite its vast collection of works, is portrayed as lacking something essential without the contributions of Mr. Goodman. This statement highlights the importance of individual efforts in enriching a broader intellectual pursuit, suggesting that even the most impressive libraries can feel inadequate without certain influential works or authors.

Nabokov's remark underscores the value of collaboration and the unique voice that each writer brings to literature. It implies that libraries, representing a collective knowledge, become more meaningful when complemented by the distinct additions of significant contributors like Goodman, enhancing the literary landscape.