Some interesting quotes of famous people about these lifestyles:
- A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty. (Winston Churchill)
- What is pessimism? The result of meeting of two different optimists. (Stanislav Ezhi Lets)
- The world belongs to optimists, pessimists are only spectators. (François Guizot)
- Everything is not so bad as it seems. It’s much worse. 
(Bill Press)
- Optimist is a person who precisely knows how bad the world can be; and for pessimist it’s the news every single morning. (Peter Ustinov)
- If you see a light in the end of a tunnel, it means that you are looking in wrong direction. (Barry Commoner)
- Often in difficult life situations, pessimism takes away the last braveness. (Alfred Adler)
- Pessimism is when knowledge is bigger than belief, and optimism – when belief is bigger than knowledge. (Baurzhan Tojshibekov)
- Original optimism is based NOT upon the belief that everything will be good, but on the belief, that everything won’t be so bad. (Jean Djutur)
