"I'm more optimistic now than at any time I can remember."

"I'm optimistic at this moment in time, and everything's to play for next year."

There are reasons to be optimistic about the future of art, even at the Whitney.

How could I not be optimistic at this time?

This account of science is indeed overly optimistic but at the same time limited.

Although the drive to cut costs is expected to pay off once sales rebound, some analysts are not optimistic at present.

I don't see there is any point in being optimistic at the moment.

Roberts sometimes asks his guests if they are optimistic about the future, particularly at the end of the interview.

Still, there did not seem to be much to be optimistic about at the moment.

I can't afford not to be optimistic at this point.