I believe, therefore, that although it is not the case today, that there may some day come a time, I should hope, when it will fully appreciate that the power of governments should be limited; that governments ought not to be empowered to decide the validity of scientific theories, that this is a ridiculous thing for them to try to do; that they are not to decide the description of history or of economic theory or of philosophy.

The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman