The promotion of "self-esteem" in our schools has been so successful that people feel free to spout off about all sorts of things - and see no reason why their opinions should not be taken as seriously as the views of people who actually know what they are talking about.

At least half of the popular fallacies about economics come from assuming that economic activity is a zero-sum game, in which what is gained by someone is lost by someone else. But transactions would not continue unless both sides gained, whether in international trade, employment, or renting an apartment.

What 'multiculturalism' boils down to is that you can praise any culture in the world except Western culture - and you cannot blame any culture in the world except Western culture.

The same set of statistics can produce opposite conclusions at different levels of aggregation.

How a man who holds the entire population of a country as his prisoners, and punishes the families of those who escape, can be admired by people who call themselves liberals is one of the many wonders of the human mind's ability to rationalize. Yet such is the case with Fidel Castro.

One of the sad signs of our times is that we have demonized those who produce, subsidized those who refuse to produce, and canonized those who complain.

There is no bigger waste of time than doing 90% of what is necessary.