A room without books is like a body without a soul.

Marcus Tullius Cicero (106-43 BC) Roman orator, statesman, philosopher

(Paraphrase)
    (Source)

This appears to be a paraphrase of:

Since Tyrannio has arranged my books, the house seems to have acquired a soul.

[Postea vero quam Tyrannio mini libros disposuit, mens addita videtur meis aedibus.]

From Epistulae ad Atticum [Letters to Atticus], Book 4, Letter 8 (4.8) (Apr-May 56 BC) [tr. Winstedt (1912)].