The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and re-learn. (Alvin Toffler, American writer and futurist)

Illiteracy is still a big problem in many parts of the world—underprivileged people who have never learned to read and write. Toffler, however, suggests that in the literate world there is a greater problem: people who can read and write but who have lost the ability to think outside the box, to question and research to find new answers in a changing world.

Let the wise listen and add to their learning, and let the discerning get guidance. … Instruct the wise and they will be wiser still; teach the righteous and they will add to their learning. (Proverbs 1:5; 9:9).