To be or not to be that is the question' is a famous soliloquy from-

• Hamlet is a famous tragedy of William Shakespeare.
• Famous quotations of Hamlet:
- 'To be or not to be that is the question',
- 'Frailty, thy name is woman',
- Brevity is the soul of wit',
- Neither a borrower nor a lender be; For loan oft loses both itself and friend',
- 'There is divinity that shapes our end'.
Source: Encyclopedia of Britannica and Hamlet.