"Books are divided into two classes, the books of the hour and the books of all time"

John Ruskin draws a clear distinction between two categories of books, highlighting their differing roles and values in the human experience. The "books of the hour" are those works that address the concerns, interests, or fashions of their particular moment. They may be widely read during their time, sparking discussion or trend, yet their influence diminishes as tastes and circumstances change. Such books are often topical, shaped by the immediate context in which they are written and consumed; they serve to entertain, inform, or resonate with contemporary issues, but their relevance typically fades as the world moves on.

In contrast, "books of all time" possess enduring significance. These are literary works that transcend their period of origin, speaking to fundamental human truths, emotions, and questions that remain constant across generations. They are not confined by the bounds of current events or fleeting trends. Instead, they offer wisdom, beauty, and insight that provoke thought and inspire wonder regardless of the era. Their universality allows them to maintain their value through centuries, inviting readers from different backgrounds and ages to find meaning within them.

Ruskin's distinction emphasizes the importance of seeking out and cherishing these timeless works. While "books of the hour" can provide immediate pleasure or relevance, they do not inhabit the reader’s mind or soul in the same way as the classics. The "books of all time" become companions, teachers, and guides. They form the backbone of the literary canon and contribute enduringly to culture, personal growth, and the collective conversation of humanity.

By dividing books in this manner, Ruskin urges readers to exercise discernment, to spend their precious reading hours not only on what is popular or current, but also on what has stood the test of time, enriching both mind and spirit across successive generations.