Wicca is a religion a way of life, you can be a witch and not practice Wicca
here is "Origins of the Rede" http://www.wicca-spirituality.com/wiccan-rede.html
The first written example of the Rede is from 1954 in Gardner's third book, The Meaning of Witchcraft . . .
"[Witches] are inclined to the morality of the legendary Good King Pausol [sic], "Do what you like so long as you harm no one."
It was not presented as a law or even guideline, but merely a moral inclination of witches.
Gardner was referring to a figure from Pierre Lou˙s' book, The Adventures of King Pausole, which was published in 1901 . . .
"I. Do no wrong to thy neighbor.
II. Observing this, do as thou pleasest."
Then Doreen Valiente gave us what has become the basis of the Wiccan Rede ...
"Eight words the Wiccan Rede fulfil,
An it harm none, do what ye will."
Valiente, who is responsible for polishing much of Gardner's work, recited this in a public speech in 1964, where it caught the imagination of many Wiccans.This is a religion that respect nature and that lives on this planet.
Witches can do curses but a Wiccan no...it's against the law of the rede...