Someone walks into your house and sees your many books on your many bookshelves. Have you really read all these? they ask. This person does not understand knowledge. A good library is comprised in large part by books you haven’t read, making it something you can turn to when you don’t know something. He calls it: the Anti-Library.
I remember once in college, the pride I felt about being able to write an entire research paper with stuff from my own anti-library. We all have books and papers that we haven’t read yet. Instead of feeling guilty, you should see them as an opportunity: know they’re available to you if you ever need them.