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“The oldest problem in economic education is how to exclude the incompetent. A certain glib mastery of verbiage-the ability to speak portentously and sententiously about the relation of money supply to the price level-is easy for the unlearned and may even be aided by a mildly enfeebled intellect. The requirement that there be ability to master difficult models, including ones for which mathematical competence is required, is a highly useful screening device.”

“The Internet, too, has strong attributes of a public good, and has undermined the “private good” attributes of old media. Internet service providers obviously can exclude people, but the actual content -the values, the ideas- can be shared with no loss of value for the consumer. It is also extremely inexpensive and easy to share material. Sharing is built into the culture and practices of the Web and has made it difficult for the subscription model to be effective.”

“The power of equations lies in the philosophically difficult correspondence between mathematics, a collective creation of human minds, and an external physical reality. Equations model deep patterns in the outside world. By learning to value equations, and to read the stories they tell, we can uncover vital features of the world around us.”

“I was raised by my grandmother. She had a very difficult time, raised all her kids, my father and everybody. Listening to those stories and finding her so strong, poised. Anybody who came close to her was made to feel blessed. And at the same time, it didn't matter how strong a person was, in front of her, their head would go down. She carried through her life raising everybody. That is my model.”

“It is quite difficult to establish a clear-cut cause-and-effect relationship, as the causes are manifold and closely connected. It is simply not correct to link the level of democracy to prosperity. It is absolutely clear that the economic wealth of Saudi Arabia exceeds the performance of the Czech Republic. But apparently democracy is quite stable in the Czech Republic, which cannot be said about Saudi Arabia. As we delve into the past, we must not forget about the existing model of society.”