One cognitive scientist, David Geary, argues that as human society grows increasingly complex, individuals don't need to be as intelligent in order to survive and reproduce.

一位认知科学家，大卫基尔，其报告指出，由于人类社会的进步越来越复杂，个人并不需要有那些为了生存和繁殖的智力。

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David Letterman has long been one of America's most intelligent and funny talk show hosts, and 2008 was a good year for him.

大卫·莱特曼很久以来一直是美国最睿智最风趣的脱口秀节目主持人之一，2008年对他来说真是如鱼得水。

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ABSTRACT: David Koretz released an intelligent wine device called Plum which attracts the eyes of wine customers.

摘要：大卫·科瑞兹近日发布了一款带有智能温控的取酒器——普拉姆。

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"There's no doubt David is a very intelligent rugby player and will pass on a lot of his experience and motivation to the younger group of players that are coming through, " said Stephen Jones.

BBC: Scarlets hand captaincy to Jones

Despite his scrapes, Mr Johnson, a friend of fellow Old Etonian Tory leader David Cameron, is highly intelligent and has a following which extends beyond normal politics.

BBC: Profile: Boris Johnson

David Serchuk is assistant editor for Intelligent Investing at Forbes.

FORBES: Intelligent Investing Guest Profile