As the burgeoning management literature on human capital points out, when talent can walk, that freedom gives it huge market power.

ECONOMIST: Fear and management

Thomas Jefferson was one of the last great polymaths of the human race -- an expert in law, literature, philosophy, botany and architecture.

FORBES: Digital Rules: The Two Cultures

As a meditation on human mortality, its theme is one of the most common in literature.

WSJ: Meditation on Mortality | Elegy Written in a Country Church-Yard | Thomas Gray | Masterpiece by John J. Miller