We think in metaphors, and words describe metaphors. A metaphor is a description like "He's cold as ice." He's not cold, he's unfriendly, but we know what it means. Metaphors form neural pathways, or connections, between neurons. The more we activate the pathways, the stronger they become, and the more we accept them as true. Metaphors, words, thoughts, and language therefore have a neurological basis that result from physical transformation of brains (actual physiological change to brain cells similar to increased muscle mass that results from weight lifting).
Republicans have intuitively known this and have used language to create metaphors and neural pathways that have become dogmatic in America--example: tax relief, page 234. Relief is not normally connected to taxes (road building, social security, and armed forces result from taxes, not relief). However, tax relief has become a metaphor in the US that is identified as generally good, and puts anyone who criticizes the concept on the defensive.
The conservative Republican model society is based on Old Testament concepts: right and wrong are absolute. It is based on a strict father model (page 78) that relies on discipline. The father tells the children how to behave and punishes them if they do not heed the father. Children learn discipline so they will do the right thing without question (think of Marines who obey commands in the heat of war as described in the book Flags of Our Fathers, James Bradley and Ron Powers, 2001). Obeying authority without questioning it is paramount. That's why Republicans supported President Bush's pardon of Scooter Libby for lying to Congress - Libby was merely obeying orders. Once discipline is learned, there is no need for government since disciplined individuals don't need any outside help. Discipline leads to self-reliance, and government aid like social security is not only unnecessary, it leads to weakness because it causes citizens to lose their self reliance. Authority is absolute, and so is the requirement to obey it. That is why conservatives are so threatened when their position is criticized--it is tantamount to questioning authority, and absolute authority is fundamental to their view of the world.
Liberals, or progressives as George Lakoff prefers to call them, start from a nurturing concept. Children do not need discipline, they need nurturance. Government stands for the proposition that it permits people to flourish. Roads permit commerce, medicine protects our health, police and firemen protect us from catastrophe, the FDA protects us from corporations whose zeal for profit would lead them to sell drugs with harmful side effects, and the SEC protects us from unscrupulous traders that would manipulate markets for private gain.
People think by emotion, and progressives try to reason according to rational, Old Enlightenment, factual-based logic. Progressives need to appeal to people's emotions more. Emotions, like metaphors, are established neural pathways in mature brains, and progressives need to adopt frames that tap into voters' nurturing neural pathways.
Progressives should not permit conservatives to force them into responding (and therefore adopting) conservative frames (see page 153 regarding Obama's response to Wolf Blitzer's question on mandatory English in the US). The technique is to 1) describe the frame that the questioner has just used; 2) describe what's wrong with the frame; and 3) come up with an alternate frame.
People have natural tendencies that can be politically manipulated. See "Why Hawks Win," page 223, for an example of why it is easier to convince citizens to go to war than it is to object going to war. Again, the solution is to reframe the debate; to point out the errors in going to war. Would we have invaded Iraq if it was a prelude to endless war, rather than a war on terrorists that would soon be "Mission Accomplished?"
The book's strengths are 1) describing conservative and progressive thought processes, and 2) describing neurological and psychological research that support the biological bases for thought and linguistics.
The book's shortcomings are 1) failing to provide concrete examples of conservative frames and how to specifically counter them, and 2) failing to theorize how people become conservative or progressive over time, and whether they can be manipulated to become conservative or progressive as they mature.