1.   His optimism was a red rag to the protesters.

2.   However, elements on both sides oppose further compromise, and on Monday there was little optimism about a breakthrough.

3.   Long-term trends suggest that economic optimism was highly volatile.

4.   None the less, there is cautious optimism at the dawning of a new age.

5.   Optimism is my middle name because, unable to agree on a name, my parents stuck a pin in a dictionary.

6.   There was cautious optimism from ISPs after the announcement was made public yesterday.

7.   There was initial optimism about a breakthrough in relations between the two countries.

8.   There was optimism that an agreement could be reached.

9.   It now seems their optimism was premature.

10.   Despite various unresolved aspects, there was optimism that agreement could be reached by August, in time for submission of the treaty to the UN General Assembly.