No, Teribus! What you actually posted was;

Clark was equivocal about the source for the dialogue for many years, although in 2007 a friend Euan Graham, recalled a conversation in the mid-sixties, when Clark on being challenged as to the dialogue's provenance, looked sheepish and said "WELL I INVENTED IT"."

If you're not happy with the content of Wikipedia, then your argument lies with them, not me.