Full Idea
A lottery is not democratic, because every state contains people who are not democratic, and if the lottery chooses them they will destroy the democracy. People should elect those who are observed to favour democracy.
Gist of Idea
The first priority in elections is to vote for people who support democracy
Source
Anon (Diss) (Dissoi Logoi - on Double Arguments [c.401 BCE], §7)
Book Reference
'The First Philosophers', ed/tr. Waterfield,Robin [OUP 2000], p.297