Some people find that a psychologically difficult thing to accept, but I've believed that pretty much all my life, so I'm quite comfortable with it.

有些人会觉得心理上,很难接受这一点，但在我的人生中，我一直相信这一点，我也坦然接受这一点。

普林斯顿公开课 - 人性课程节选

That seems very hard to believe.

这似乎很难相信。

耶鲁公开课 - 死亡课程节选

Freud's--Freud was very focused on the family life of the people he interacted with, which is rather upper class Europeans, and these sort of questions would have been difficult for Freud to answer.

弗洛伊德非常关注,与他接触之人的家庭生活，也就是一些欧洲的贵族们，对于这类问题,相信弗洛伊德本人也很难作答。

耶鲁公开课 - 心理学导论课程节选