Edmund Burke: Early and provident fear is the mother of safety.

Source

speech on the petition of the Unitarians, House of Commons (May 11, 1792); in The Works of the Right Honorable Edmund Bu, Edmund Burke, speech on the petition of the Unitarians, House of Commons (May 11, 1792); in The Works of the Right Honorable Edmund Burke (1899), vol. 7, p. 50.