Mars is essentially in the same orbit. ... Mars is somewhat the same distance from the Sun, which is very important. We have seen pictures where there are canals, we believe, and water. If there is water, that means there is oxygen. If oxygen, that means we can breathe.

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Quote text and notes from Wikiquote: Dan Quayle (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.