Be not afeard: the isle is full of noises,
 Sound and sweet airs, that give delight, and hurt not. 
 Sometimes a thousand twangling instruments
 Will hum about mine ears; and sometimes voices,
 That, if I then had wak'd after long sleep,
 Will make me sleep again: and then, in dreaming,
 The clouds methought would open and show riches
 Ready to drop upon me; that, when I wak'd 
 I cried to dream again. 

NOTE: In The Tempest, Act III: Scene 2, Caliban speaks these words to Stephano and Trinculo.