A tall, soft-spoken Mormon academic at Harvard Business School, "Clay" Christensen (born 1952) sprang to prominence on the strength of one book, "the Innovator's Dilemma".

1952年生的克里斯滕森是个个子高高、轻声细语、信奉摩门教的哈佛商学院教授，凭借《创新者的窘境》一书而声名大噪。

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These are empty information calories, to borrow a phrase from Clay Johnson's timely new book, The Information Diet.

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Among the book's most quoted bosses are William Clay Ford of the car company and Roger Enrico of PepsiCo.

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