Wiccan Rede

'An it harm none, do what ye will' is a saying of the Wiccan religion, sometimes known as the Wiccan Rede

There appear to be a number of spellings and versions of this saying: the above seems to be one of the most popular on Google, and that used in the Wicca article.

Other versions include

And It Harm None, Do As Thou Wilt

Do what you will, so long as it harms none

An it harm none, do what thou will

That it harm none, do as thou wilt

...and so on

Compare and contrast with Aleister Crowley's 'Do what thou wilt shall be the whole of the Law' - presumably intended as a reaction to the above?

Does this originate in German "Rede"=saying?