"Do not suppose, however, that I intend to urge a diet of classics on anybody. I have seen such diets at work. I have known people who have actually read all, or almost all, the guaranteed Hundred Best Books. God save us from reading nothing but the best"

This quote by Robertson Davies is a caution against checking out just the "best" books. He is warning against the concept of a "diet of classics" and the concept that one should only check out the "ensured Hundred Best Books". Davies is recommending that this type of reading is not beneficial and can be damaging. He is advocating for a more diverse reading list, one that includes books of all categories and styles. He is suggesting that reading only the "best" books can result in a narrow-mindedness and an absence of appreciation for the variety of literature available. He is motivating readers to check out various kinds of books and to not limit themselves to only the classics. By doing so, readers can acquire a greater appreciation for literature and a better understanding of the world.