"Energetic Libertarian Nuts"

Via Yann Giraud:

...Paul Samuelson had written to his friend Alvin Hansen a couple of years before, in the midst of the Phillips curve controversy, the following sentence: "Milton F. is a bloody nuisance. In the end he is not right in his provocative stands, but it takes valuable time rebutting his arguments." He even added: "Having just returned from UCLA where (as in Virginia and Washington) the place is jumping with energetic libertarian nuts, I realize that so much of one's scientific life has to be occupied in sterile debate."...

More here.