The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate will be our knowledge of what we do not know, our knowledge of our ignorance. For this, indeed, is the main source of our ignorance — the fact that our knowledge can be only finite, while our ignorance must necessarily be infinite."
- Karl Popper in Conjectures and Refutations: The Growth of Scientific Knowledge (1963)
Here are some of my own thoughts on this field of life:
General knowledge of a person is like a cloud-system. It is inevitably thicker in some places and thinner in some others. In some places, it will disappear altogether, but in some other (normally small) areas, it can reach the ground like a tornado.
Some people have heavy storm clouds in a few places, but vast clear spaces in most others. On the other hand, some people have a quite even, but a thin layer of clouds all over the place, but it never gets thick.
Every single person has a different cloud-system. In fact, I can easily guess that we would be thoroughly surprised the real level of these differences. This cloud system moves and evolves constantly; in some places, it gets thicker, but thinner in some others.
Some people gather knowledge into areas that have a practical use in every-day life, but others gather gems of knowledge from all over the place. Knowledge is just a tool for some, but some people can get immense pleasure from the very act of gathering new knowledge.
Karl Popper is in Facebook at:
"Sir Karl Raimund Popper, CH FRS FBA (28 July 1902 – 17 September 1994) was an Austro-British philosopher and professor at the London School of Economics. He is generally regarded as one of the greatest philosophers of science of the 20th century. He also wrote extensively on social and political philosophy. In 1992 he was awarded the Kyoto Prize in Arts and Philosophy for "symbolising the open spirit of the 20th century" and for his "enormous influence on the formation of the modern intellectual climate".