My favorite soliloquy in all of Shakespeare is not the most famous one. Most people would…
Richard III, Act 1, Scene 1 (First Folio, 1623)
Actus Primus. Scœna Prima.
Enter Richard Duke of Gloster, solus.
NOw is the Winter of our Discontent,
It doesn’t get much more famous than this soliloquy from Act III, Scene 1 of Hamlet:
To be, or not to be, that is the question,
Whether ’tis nobler in the mind to suffer