Who said it, and what is he/she talking about?

1. "Let every soldier hew him down a bough
   And bear't before him"
   Answer

2. "...infected minds
   To their deaf pillows will discharge their secrets.
   More needs she the divine than the physician."
   Answer

3. "Turn, hell-hound, turn!"
   Answer

4. "She should have died hereafter;
   There would have been a time for such a word."
   Answer

5. "Despair they charm...
   Macduff was from his mother's womb untimely ripped."
   Answer

6. "Hail, King! for so thou art: behold, where stands
   Th' usurper's cursed head.  The time is free."
   Answer