Harold J. Laski: “They have an unlimited sense of a divinely appointed mission, and the whole of their life is set in its perspective.”

The intolerance may be Catholic, when it insists that a unity of outlook is essential for the preservation of society; or it may be Protestant when, as with Calvin and the Socinians, it holds that the blasphemous nature of the belief…

To deny novelty or grievance a right of expression is a certain, if, indeed, an ultimate, validation of the truth they contain.

When attacks on liberty are political or economic, it is their motive rather than their nature that changes.

Ultimately, that denial is always made upon the same ground: it is insisted that the doctrines or practices attacked are subversive of the civil order.