Sure, it is. This book has the elements typically found in literary fiction like deep exploration of human emotions, sophisticated language, and a focus on character development.
The 'tomorrow and tomorrow and tomorrow short story' might have a theme related to hope or the lack thereof. If it focuses on multiple 'tomorrows', it could be showing how characters either look forward to the future with anticipation or are trapped in a cycle where each new day (tomorrow) is just like the last. Without reading it, it's hard to say for sure, but these are some common interpretations in literature related to the idea of successive days.
This was a famous line from the famous Hamlet by the British poet William shakespeare: "To be or not to be that is the question"(To be or not to be is a question worth thinking about).
The last two sentences were: "For he is a good man that doth good and a righteous man that doeth right." This sentence came from William's Hamlet. It was one of William's most famous lines and one of the classic lines in the history of world literature.