81.   For a while, there was optimism among Western businesses and diplomats.

82.   For all those reasons, optimism is the consensus.

83.   For many investors, rising optimism is actually a cause for concern rather than confidence about the future direction of stock prices.

84.   For the near term, at least, there is optimism.

85.   Her eternal optimism has been her driving force.

86.   Her optimism was ill-founded.

87.   His optimism is understandable.

88.   His optimism is contagious.

89.   His optimism was as desperately credulous as his fears were stark.

90.   His optimism was, at times, almost comical, but he never apologized for that.