Ethics
"Harm None" is the one rule that wiccans live by. It literally encompases all. Prohibiting action that would harm another person, their self, a plant, an animal or the earth, which to wiccans is the body of the Goddess, Mother Earth. It is important to consider our actions in that context, if I do such and such, will it harm anyone / anything?

"The Three Fold Rule" is a concept that wiccans believe in. Put simply it means that what you do will come back to you with three times the impact or strength of your action. Three times good or three times bad, it depends on your action. As you can see from this, it would be misguided of a wiccan to harm anyone / anything, as it would come back to them three times worse.

The flipside of this of course is that if you do something good, it will come back to you three times as good. Of course you may not be aware of it! But it will come back to you.

Many religions have made Sex to be a dirty and sinful action. For wiccans it is a celebration of life as long as it meets the single Rule... "Harm None".