A single decision by the chairman of Royal Dutch/Shell has a greater impact on the health of the planet than all the coffee-ground-composting, organic-cotton-wearing ecofreaks gathering in Washington D.C., for Earth Day festivities this weekend.

The conscious act of thinking about one's thoughts in a different way changes the very brain circuits that do that thinking.

With modern parts atop old ones, the brain is like an iPod built around an eight-track cassette player.

We look harder for flaws in a study when we don't agree with its conclusions.

The mind can store an estimated ioo trillion bits of information compared with which a computer's mere billions are virtually amnesiac.

Like sand on the beach, the brain bears the footprints of the decisions we have made, the skills we have learned, the actions we have taken.

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