Metaphor is pervasive in everyday life, not just in language but in thought and action. Our ordinary conceptual system, in terms of which we both think and act, is fundamentally metaphorical in nature.

Our concepts structure what we perceive, how we get around in the world and how we relate to other people. Our conceptual system thus plays a central role in defining our everyday realities.

One of the things cognitive science teaches us is that when people define their very identity by a worldview, or a narrative, or a mode of thought, they are unlikely to change-for the simple reason that it is physically part of their brain, and so many other aspects of their brain structure would also have to change; that change is highly unlikely.

Most conservatives are conservatives because they think they are morally correct.

Science is fundamentally a moral enterprise, following the moral imperative to seek the truth.

For centuries, we in the West have thought of ourselves as rational animals whose mental capacities transcend our bodily nature. In this traditional view our minds are abstract, logical, unemotionally rational, consciously accessible, and, above all, able to directly fit and represent the world. Language has a special place in thie view of what a human is - it is a privileged, logical symbol system internal to our minds that transparently expresses abstract concepts that are defined in terms of the external world itself.

If you're a progressive, you can find lots of people who call themselves conservatives, but who agree with you on lots of things. There are people who call themselves conservatives, but who love the land as much as any environmentalist. Progressives share a number of common values with people who call themselves conservatives. Barack Obama has understood that very well. What he calls bipartisanship is not adopting conservative views, but finding where people who consider themselves conservatives share with him and other progressives these fundamental American values.