In my understanding, We all are Dwarfs, with a magical power of knowledge. Dwarf is the person, one who develops future Intellectual pursuits by understanding the Research's and works created by notable thinkers of the past.
I would call the Scientists, Writers, Analysts, Medico's, Observers in the past as Giants and we evolved to this stage from their Observations and Experiences.
Bernard of Chartres used to say that we are like dwarfs on the shoulders of giants, so that we can see more than they,and things at a greater distance, not by virtue of any sharpness of sight on our part, or any physical distinction, but because we are carried high and raised up by their giant size.
Earlier mankind doesn't have knowledge on burning capability of fire, once he experience it, he knew it. So I didn't think long to say, Knowledge derives from "Experience". You won't become Astronomer, if you sit down and cry "Astronomy, Astronomy" , rather taking telescope and experimenting on the sky and stars can make you the 'Astronomer'. For that, you may need to refer what are previous Astronomer's observations and learnings!
Same way, to accomplish a task or your desire, provide yourself with known-facts, techniques & Arrange your ideas, do-able things perfectly and rapidly start your work. Remember, Avoid "Re-Inventing Wheel".
As a whole, I can say that, Knowledge is not a proprietary thing and it is a common heritage of all Mankind.
Still, If you believe Knowledge is a God-sent trait found only in Privileged, Think Again!! Again n Again.