Between the Great Depression and the 1970s, private business was viewed with suspicion even in most capitalist economies. Businesses were, so the story goes, seen as anti-social agents whose profit-seeking needed to be restrained for other, supposedly loftier, goals, such as justice, social harmony, protection of the weak and even national glory.

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.

Culture changes with economic development.

Making rich people richer doesn't make the rest of us richer.

It takes time and experience to absorb new technologies, so technologically backward producers need a period of protection from international competition during this period of learning. Such protection is costly, because the country is giving up the chance to import better and cheaper products. However, it is a price that has to be paid if it wants to develop advanced industries.

Assume the worst about people and you get the worst.

Equality of opportunity is meaningless for those who do not have the capabilities to take advantage of it.