If you have a garden and a library, you have everything you need.

[Si hortum in bibliotheca habes, deerit nihil.]

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

Epistulae ad Familiares [Letters to Friends], Book 9, Letter 4 “To Varro” (9.4) (46-45 BC)

In June 708 AUC. Sometimes rendered "nihil deerit."

Alt. trans.: "If you have a garden in your library, everything will be complete." [Source].

Original Latin in context.