When you think about the defence of England, you no longer think of the chalk cliffs of Dover.You think of the Rhine. That is where our frontier lies today.

-Baldwin (of Bewdley), Stanley Baldwin, 1st Earl
  House of Commons, 30  Jul.

It is burning a farthing candle at Dover, to shew light at Calais.

-Johnson, Samuel known as Dr Johnson
  Summarizing the influence of the plays of  Thomas Sheridan upon English literature, 28  Jul. Quoted in  James Boswell The Life of Samuel Johnson (1791), vol.1.

It has lately been brought to my knowledge That the Ministers fully design To suppress each cathedral and college, And eject every learned divine. To assist this detestable scheme Three nuncios from Rome are come over; They left Calais on Monday by steam, And landed to dinner at Dover.

-1st Baron
  'The Country Clergyman's Trip to Cambridge', stanza 2.  A satiricalpoem against the opposition to Catholic emancipation.