Full Idea
Character (éthos), as the word itself indicates, is developed from habit (ethos).
Gist of Idea
Character (éthos) is developed from habit (ethos)
Source
Aristotle (Eudemian Ethics [c.333 BCE], 1220a36)
Book Reference
Aristotle: 'Eudemian Ethics I,II and VIII', ed/tr. Woods,Michael [OUP 1992], p.15
A Reaction
Aristotle goes in for dubious etymologies, but this one sounds quite significant, and supports his view that habit is central to virtue. We would lose nothing in English if we said 'what are her habits?' instead of 'what is her character?'.