"Nothing can be so amusingly arrogant as a young man who has just discovered an old idea and thinks it is his own."
- Sidney J. Harris

"The fool sees not the same tree that a wise man sees."
- William Blake

Can a person, young of age or of heart, discover something new in an old idea? Is rediscovery a sign of wisdom? Is one person's wisdom another's amusing arrogance? Is there "nothing new under the sun" as the proverb says, but only fresh eyes seeing it anew?