我必须相信不会有更多的并发症。

I must believe that there will be no more complications.

youdao

我必须相信在我头脑之外的那个世界。

I have to believe in the world outside my own mind.

youdao

先说重要的，我必须相信照顾好我自己很重要。

First things first, I had to believe that it was important to take care of myself.

youdao

And,as Chateaubriand said,the writer, "I don't know what we must believe but we must believe in something," and he gets down on his knees and prays.

如作家夏多布里昂所言,"我不知道我们能相信什么,但我们必须相信点什么",然后他屈膝跪下开始祈祷

耶鲁公开课 - 1871年后的法国课程节选