Paul McCartney was, incredibly, only 22 when he wrote Yesterday, a song covered 2200 times so far.

FORBES: Sex and Love and The Business of "I Do"

" That fuzzy line between authenticity and the reproduction can rankle purists, who see in the democratization of taste a profusion of tasteful items "devalued, " as Paul Goldberger once wrote, in a piece about Friedman when he was at Pottery Barn, "by their very accessibility.

WSJ: Restoration Rewired

Apparently Paul Simon was stuck at the station in Wigan, England when he wrote this.

ECONOMIST: Business travel

As Paul Lim of the New York Times recently wrote, certain characteristics tend to surface when the stock market is near a peak.

FORBES: Stock Market Logic