Full Idea
An insight formulated by me: that there are no moral facts whatever. Moral judgement has this in common with religious judgement that it believes in realities which do not exist.
Gist of Idea
There are no moral facts, and moralists believe in realities which do not exist
Source
Friedrich Nietzsche (Twilight of the Idols [1889], 6.1)
Book Reference
Nietzsche,Friedrich: 'Twilight of the Idols and The Anti-Christ', ed/tr. Hollingdale,R.J. [Penguin 1972], p.55
A Reaction
Not only a slogan for non-cognitivism, but also a clear statement of the error theory about morality, a century before John Mackie.