Knowledge and ignorance are the obverse and the reverse of a coin. Knowledge is the best possible good, while ignorance the worst possible misfortune. "As for me," Socrates says, "all I know is that I know nothing." We are in no time reminded of the bold statement made by Bacon: "I take all knowledge to be my province."
"Knowledge is precious to us, because we shall never have time to complete it."
  — Tagore, The Gardener