"You can't be optimistic about anything in China," he said.

At any rate, Canada had good reason to be optimistic in the international sphere.

She is a cheerful person who can remain optimistic even in the time of crisis.

"I am optimistic about the course of Germany in the future," he said.

We were told not to be optimistic in that regard, she said.

Not everyone is so optimistic, at least in the short term.

But people on the buy and sell side are their most optimistic in three or four years.

His three students get the same treatment, though I'm not optimistic in two cases.

He began to be more optimistic of their chances in this place.

We are optimistic in the sense that there is a process of liberation going on.