How to Use "pessimist" with Example Sentences

1. Some pessimist think that this can only lead to humiliation .

2. Idealist and pessimist tribes gather around the future of machine translation .

3. Why are you always a pessimist ?

4. I 've never seen a monument erected to a pessimist .

5. There was the civil-rights movement , the feminist movement . Why not the pessimist 's movement ?