Authors:

If you ask "Should we be in space?" you ask a nonsense question. We are in space. We will be in space.

"The Maker of Dune: Insights of a Master of Science Fiction". Book edited by Tim O'Reilly, essay "Man's Future in Space", (1981), 1987.
If you ask Should we be in space? you ask a nonsense question. We are in space. We will be in space.