it is one thing to have free immigration to jobs. It is another thing to have free immigration to welfare. And you cannot have both. If you have a we… - Milton Friedman

To take a different example, whether it is less costly for loggers to use a chain saw or handsaw depends on the price of the chain saw and the handsaw, the amount of labor required with each, and the wages of different kinds of labor. The enterprise doing the logging has an incentive to acquire the relevant technical knowledge and to combine it with the information transmitted by prices in order to minimize costs.

Hell hath no fury like a bureaucrat scorned.

In the course of General Westmoreland's testimony, he made the statement that he did not want to command an army of mercenaries. I stopped him and said, 'General, would you rather command an army of slaves?' He drew himself up and said, 'I don't like to hear our patriotic draftees referred to as slaves.' I replied, 'I don't like to hear our patriotic volunteers referred to as mercenaries.' But I went on to say, 'If they are mercenaries, then I, sir, am a mercenary professor, and you, sir, are a mercenary general; we are served by mercenary physicians, we use a mercenary lawyer, and we get our meat from a mercenary butcher.' That was the last that we heard from the general about mercenaries.