#1 Knowledge by name or label is incomplete
All different languages will call the bird the english call an eagle by a different name.
Who's to say what the bird's real name is? Who's to determine who has a more accurate or less appropriate name for such bird?
Only when we understand the bird does not only go by the name we call it, that we realise knowledge is not in knowing what a thing is called, but understanding the thing for what it is - and what makes it what it is.