At the end of his Stanford commencement speech Steve Jobs quoted the farewell message placed on the back cover of the last 1974 edition of the Whole Earth Catalog.)
"Stay hungry. Stay foolish." Whole Earth Catalog.
Redundancy of function is always more reliable than attempts at perfect, which time treats cruelly.
Earthrise, by William Anders, Apollo 8, 1968, the cover photo of the second and third editions.
Quote text and notes from Wikiquote: Stewart Brand (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.