"a true knowledge" is correct and usable in written English.
You can use it to refer to a comprehensive understanding or to refer to facts that are reliable and accurate. For example, "By studying history, we can gain a true knowledge of how societies have changed over time."
Trying to shoehorn knowledge into the "property" metaphor leaves us without the flexibility and nuance that a true knowledge rights regime would have.
The first step in the direction of a true knowledge economy is wholesale privatisation of the university system, something few ministers and bureaucrats dare even dream about.
He chastises those who believe that their faith offers "an exclusive path to a true knowledge of God" and says such exclusiveness "is a serious barrier to genuine peace-making in a world of religious pluralism".
Our main findings are that Africa has still a far way to go to become a true knowledge society, but that there is hope to successfully transform Africa into a knowledge society.
What Proust's narrator says about memories of his grandmother applies as well to the spirit voices that speak through music: "We acquire a true knowledge only of things that we are obliged to re-create by thought, things that are hidden from us in everyday life".
And now I should like you to tell me, whether the Sophist is not visibly a magician and imitator of true being; or are we still disposed to think that he may have a true knowledge of the various matters about which he disputes?
Sadly, the quick returns on these megaprojects have undermined investment in local venture funding and a true knowledge-economy.
Policies addressed to education, research and innovation should be mutually reinforcing to ensure the development of a fully functional knowledge triangle and to speed up the transition towards a true knowledge-based economy and society (Council of the EU 2009).
The reward, she believes, may be a truer knowledge not only of Christianity, in whatever institutional form, but also of the other great religions.
But this is, once again, to retreat to superstition, "the bitter enemy of all true knowledge and true morality".
Thus, he modified the traditional view of sensory experience, which regards it as a guarantee of true knowledge and certainty about reality because an individual cannot possibly be mistaken about the sheer impressions given by the senses.
