1·I am an optimist, but on this day my faith was shaken.
我是一个乐观主义者，但今天我的信仰动摇了。
2·And he had a miserable life until then because he always had illnesses, some of which might be even psychosomatic. So he was the optimist and the one who lived well with the pessimist.
那之前他生活得很悲惨，因为，他总是病魔缠身，有些是精神方面的疾病，因此他属于乐观主义者，而且能够和悲观主义者相处的很好。
3·But I am an optimist and I can still clearly imagine that world.
但我是一个乐观主义者，我还可以清楚地想像那个世界的样子。
4·But I am an optimist.
不过我是个乐观主义者。
5·Africa and climate therefore confront the rational optimist with a challenge, to say the least.
因此，至少可以说，非洲和气候问题将使理性乐观主义者面临挑战。
1·First, you need to be an optimist.
首先，你需要时一个乐观者。
2·The curious outcome of this debate is that while I began as the optimist and you the pessimist, our roles have reversed.
我们这场辩论让人好奇的结果是：我开始是个乐观者，你开始是个悲观者，最后我们却角色互换了。
3·Sir Winston Churchill states' a pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty. 'What do you see?
温斯顿·丘吉尔爵士说过：“悲观者在每个机会里看到的是困难，而乐观者在每个困难中看到的是机会。”你看到的是什么呢？
4·There is a famous old story about an optimist and a pessimist.
有一个关于一个乐观者和一个悲观者的著名而古老的故事。
5·Ten years online has turned me from an optimist into a pessimist.
上网十年，从一个乐观者变成了悲观者。