Self-interest, to be sure, is one of the most important, but we have many other motives - honesty, self-respect, altruism, love, sympathy, faith, sense of duty, solidarity, loyalty, public-spiritedness, patriotism, and so on - that are sometimes even more important than self-seeking as the driver of our behaviors.

It's not just about the current economic environment. History shows that slashing budgets always leads to recession.

People 'over-produce' pollution because they are not paying for the costs of dealing with it.

The higher education system in these countries (US, Korea etc) has become like a theatre in which some people decided to stand to get a better view, promoting the others behind them to stand. Once enough people stand, everyone has to stand, which means no one is getting a better view, while everyone has become more uncomfortable.

The days are over when technology can be advanced in laboratories by individual scientists alone. Now you need an army of lawyers to negotiate the hazardous terrain of interlocking patents. Unless we find a solution to the problem of interlocking patents, the patent system may actually impede the very innovation it was designed to encourage.

Rational thinking is an important aspect of human nature, but we have imagination, we have ambition, we have irrational fear, we are swayed by other people, we get indoctrinated and we get influenced by advertising.

The best way to boost the economy is to redistribute wealth downward, as poorer people tend to spend a higher proportion of their income.