World trade depends on differences among countries, not similarities. Different countries are in different stages of development. It is appropriate for them to have different patterns, different policies for ecology, labor standards, and so forth.

I do not believe there is a natural resource economics. I believe there is good economics and bad economics.

A free man will ask neither what his country can do for him nor what he can do for his country.

Theories can be based on any assumptions, however bizarre.

A society based on the freedom to choose is better than a society based on the principles of socialism, communism and coercion.

Nothing is so permanent as a temporary government program.

The evidence of history speaks with a single voice. I do not know any exception to the proposition that if you compare like with like, the freer the system, the better off the ordinary poor people have been.