We, as humans, are constantly on a journey to fill our knowledge-hungry brains with more and more information. Almost downgrading knowledge to a drug by the fact that we continually seek more like an addict. Sometimes, though, we can "overdose" to the point that we get headaches and need a break. Paradoxically, no matter how much information we store in our brains, we will never be fully capable of using our brains to their fullest potential, in a sense defeating the whole purpose of expanding our growth towards knowledge. Unfortunately, Thomas Alva Edison, inventor of the light bulb, emphasizes the fact that "we don't know a millionth of one percent about anything" (Knowledge 1). Entertainingly put by a man who provided the knowledge to invent a number of iconic devices, ranging from the light bulb to the movie camera, it misses the reality of how, even though we are always seeking new knowledge, we will never be able to . really know everything. Likewise, connecting the dots discussed in Yarrow Dunham's lecture and Carl Sagan's essay “Can We Know the Universe?” we see the same conclusions recognized by Edison. Through the lecture and the essay we can vividly see some of the fundamental implications that emerge for the concept of knowledge. Although a brain can accumulate large amounts of knowledge over its lifetime, it too is within its limits. Our brain has to be one of the best features that humans pose that other species don't quite have. Yarrow Dunham, in his lecture "What's in a Name: Labels and the Development of Social Knowledge", explained how all species have a brain but the human brain has the complexity and ability to continue learning and playing. .... half of the paper......n is finally known. As presented by Dunham, we have the knowledge to domesticate animals, use them for our gain, and represent the most unique jewel; the brain but from Sagan's words it seems that we still have a long way to go to know everything well. Works Cited "Quotes on Knowledge - Famous Quotes and Quotes on Knowledge." Famous quotes, quotations and proverbs in Proverbia.net. Network. 15 March 2011. .Dunham, Yarrow. “What's in a Name: Labels and the Development” of Social Knowledge. Auditorium, University of California Merced. March 10, 2011. Lecture. Sagan, Carl. “Can We Know the Universe?: Reflections on a Grain of Salt. "Broca's Brain: Reflections on the Romanticism of Science New York: Random House, 1979. 13-18..