Double, double toil and trouble,
Fire burn, and cauldron bubble.
SHAKS.: _Macbeth,_ Act iv., Sc. 1.
To be, or not to be: that is the question:
Whether 'tis nobler in the mind to suffer
The stings and arrows of outrageous fortune,
Or to take arms against a sea of troubles,
And by opposing end them.
SHAKS.: _Hamlet,_ Act iii., Sc. 1.