Love wol nat been constreyned by maistrye. Whan maistrie comth, the God of Love anon Beteth his wynges, and farewel he isgon!

-Chaucer, Geoffrey
  Canterbury  Tales,'The Franklin's Tale', l.764^6.

My heart in hiding Stirred for a bird,öthe achieve of, the mastery of the thing!

-Gerard Manley Hopkins
  'The Windhover'.

Those who prefer their English sloppy have only themselves to thank if the advertisement writer uses his mastery of vocabularyand syntax to mislead their weak minds.

-Sayers, Dorothy L(eigh)
  'The Psychology of Advertising', in The Spectator,19 Nov.