Professor Tindle says the study did not confirm whether optimism leads to healthier choices, or if it actually affects a person's physical health.

VOA: special.2009.04.15

A lot has happened since the exuberant optimism of the political spirit that we see in a tract like Areopagitica.

弥尔顿在《论出版自由》中发表了极为乐观的政治思想之后,政治形势发生了很大变化。

耶鲁公开课 - 弥尔顿课程节选

The speech is more than just a pious bit of optimism like a lot of the speeches, in fact, that the other brother has given us.

不同于戏中弟弟的很多演说,哥哥的这段话不是虔诚于贞操而盲目乐观。

耶鲁公开课 - 弥尔顿课程节选

Most recessions are accompanied by a resilient optimism buoyed by a belief in the innovative power of science and technology.

FORBES: 862 Trillion - Is This The Number To Salvage the US Economy?

While there is a cautious optimism, there is a real sense that too little has been done two years later.

CNN: Paging Dr. Gupta Blog

He brought with him a Midwestern optimism, and he blended it with a western "can do" spirit.

CNN: Reagan praised for?'eternal faith in America'