Full Idea
There can be no question of holding forth on ethics. I have seen people behave badly with great morality and I note every day that integrity has no need of rules.
Gist of Idea
Discussing ethics is pointless; moral people behave badly, and integrity doesn't need rules
Source
Albert Camus (The Myth of Sisyphus [1942], 'Abs Man')
Book Reference
Camus,Albert: 'The Myth of Sisyphus', ed/tr. O'Brien,Justin [Penguin 1975], p.64
A Reaction
I don't agree. If someone 'behaves badly with great morality' there is something wrong with their morality, and I want to know what it is. The last part is more plausible, and could be a motto for Particularism. Rules dangerously over-simplify life.