Book excerpt: An authority on the human mind reflects on his intellectual development, his groundbreaking work, and different types of intelligences--including his own. Howard Gardner's Frames of Mind was that rare publishing phenomenon--a mind-changer. Widely read by the general public as well as by educators, this influential book laid out Gardner's theory of multiple intelligences. It debunked the primacy of the IQ test and inspired new approaches to education; entire curricula, schools, museums, and parents' guides were dedicated to the nurturing of the several intelligences. In his new book, A Synthesizing Mind, Gardner reflects on his intellectual development and his groundbreaking work, tracing his evolution from bookish child to eager college student to disengaged graduate student to Harvard professor.