- "People go downside here, who never come up again."
- ―A spacer's horror of downside life[src]
The term "downsider" specifically meant a human who came from a planet, but was sometimes used to refer to any non-quaddie.
Stationers, such as inhabitants of Kline Station, used the term exclusively for people from planets, particularly those who did not know proper station-life procedures.
Quaddies used the term as a synonym for "people with legs", even if the person had never actually been "downside".