Humans are unique among all other species in having one cognitive attribute-the ability, almost without conscious effort, to engage in blending. This is the first book that brings the theory of blending to a wide audience and shows how blending is at the heart of the origin of ideas.

Originally published in 1948. In the first essay of this collection, Lovejoy reflects on the nature, methods, and difficulties of the historiography of ideas. He maps out recurring phenomena in the history of ideas, which the essays illustrate. One phenomenon is the presence and influence of the same presuppositions or other operative "ideas" in very diverse provinces of thought and in different periods. Another is the role of semantic transitions and confusions, of shifts and of ambiguities in the meanings of terms, in the history of thought and taste. A third phenomenon is the internal tensions or waverings in the mind of almost every individual writer—sometimes discernible even in a single writing or on a single page—arising from conflicting ideas or incongruous propensities of feeling or taste to which the writer is susceptible. These essays do not contribute to metaphysical and epistemological questions; they are primarily historical.

For centuries philosophers have attempted to derive concepts from perceptual representations but have failed to explain how the mind generates the building blocks of thought. Gauker addresses this problem in a new account of imagistic cognition. He shows that much of cognition occurs by means of mental imagery, without the help of concepts.

We humans pride ourselves on our capacity to have ideas, but perhaps this pride is misplaced. Perhaps ideas have us. After all, ideas do appear to have a life of their own. Many biologists have already come to the opinion that our genes are selfish entities, tricking us into helping them to reproduce. Is it the same with our ideas? Jonnie Hughes, a science writer and documentary filmmaker, investigates the evolution of ideas in order to find out. Adopting the role of a cultural Charles Darwin, Hughes heads off, with his brother in tow, across the Midwest to observe firsthand the natural history of ideas--the patterns of their variation, inheritance, and selection in the cultural landscape. In place of Darwin's oceanic islands, Hughes visits the "mind islands" of Native American tribes. Instead of finches, Hughes searches for signs of natural selection among the tepees.--From publisher description.

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New in paperback-- A transformative book on the way we think about the nature of concepts and the relations between language and thought.

This New York Times bestseller "elegantly weaves evidence and insights . . . into a single, accessible historical narrative" (Bill Gates) and presents a captivating history of the universe -- from the Big Bang to dinosaurs to mass globalization and beyond. Most historians study the smallest slivers of time, emphasizing specific dates, individuals, and documents. But what would it look like to study the whole of history, from the big bang through the present day -- and even into the remote future? How would looking at the full span of time change the way we perceive the universe, the earth, and our very existence? These were the questions David Christian set out to answer when he created the field of "Big History," the most exciting new approach to understanding where we have been, where we are, and where we are going. In Origin Story, Christian takes readers on a wild ride through the entire 13.8 billion years we've come to know as "history." By focusing on defining events (thresholds), major trends, and profound questions about our origins, Christian exposes the hidden threads that tie everything together -- from the creation of the planet to the advent of agriculture, nuclear war, and beyond. With stunning insights into the origin of the universe, the beginning of life, the emergence of humans, and what the future might bring, Origin Story boldly reframes our place in the cosmos.