For **marking text as a quotation** (citation) go to: [[wiki:syntax#quoting |Formatting Syntax: Quoting]]. For **quoting characters** in the meaning of //[[http://en.wikipedia.org/wiki/Escape_character |escaping characters]]// also go to the "Formatting syntax" page, but look under "Non-parsed Blocks". For a clearer picture see "%%this%%" in the source of this page and compare it with this. The latter is an instruction to display formatted code, the first //quotes// that instruction.