I don't want to argue that our goals consist of all of the buzz- words; perhaps something more simple like stating that the fundamental objective is "The charity's objective is the collection and distribution of all forms of knowledge to all under a free license or in the public domain, by means ...[etc]"?
I'd go with "knowledge and information", but otherwise I like that. (Preserving old source documents is more about information than knowledge - the facts contained aren't significant it's the document itself. I may be making a false distinction there, but I still I'd rather include both words!)
If we try and explicitly include every type of charitable goal the charity commission may not be too happy because it appears we're just trying to play the system rather than actually having clear goals.