New Orleans master mentor Ellis Marsalis played an exploratory, growing meditation on "Winter Wonderland, " anchored by brooding left-hand ostinato chords.

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Over the course of a school year, each of Eagle County's 470 teachers is evaluated three times and is observed in class at least nine times by master teachers, their principal and peers called mentor teachers.

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Though science has been her passion since first starting a science club in the third grade, Brittany has managed to master other talents as well as a varsity soccer player and mentor to students in her community.

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Master Chinhsing, a Buddhist monk of Vietnamese origin who may have been Ching Hai's mentor, disapproves of her departure from the austere ways of Buddhist tradition.

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His mentor and idol for many years, the modern movement's austere and elegant master, Mies van der Rohe, once famously said that you can't invent a new architecture every Monday morning, but that would have suited Philip Johnson's restless mind perfectly.

WSJ: Philip Johnson: Short of Attention Span, Long on Aesthetics