This often-cited aphorism captures the bittersweet frustration of a book lover: there are always more worthwhile books to read than any one lifetime can hold. It speaks to the universal tension between intellectual curiosity and human mortality, a theme that echoes through literature from ancient libraries to modern reading lists. The quote's brevity and wit make it a favorite among bibliophiles, who use it to express both their passion for reading and the gentle melancholy of finite time.