It is very difficult to find any effect of how parents talk to their kids on how their kids learn language, particularly when it comes to babies.

家长跟儿童的说话方式,并未对儿童如何学习语言,产生任何影响,尤其是在对待婴儿的时候

耶鲁公开课 - 心理学导论课程节选

I'm talking about trying to prevent suffering and prompt for people who don't want to going on living themselves or in the case of babies allowing parents to make that judgment for themselves and their family.

我所做的是为了防止痛苦,或是帮助那些不愿,活下去的人们,或是让上述例子中的孩子的父母,能够作出决定，为他们自己，也为这个家庭。

普林斯顿公开课 - 人性课程节选