You take a nine-month-old and for Piaget a nine-month-old is just starting to make sense of objects and their permanence.

你找到一个九个月大的婴儿,在皮亚杰看来,九个月大的婴儿才刚刚发展出,客体以及客体永存性的概念

耶鲁公开课 - 心理学导论课程节选

And what we are going to do over the next couple of month is expand on these-- most importantly, see how we can take the research, the rigor and apply it to our lives.

我们将在未来两个月,扩展这些前提-,最重要的是如何将研究，原则运用于生活。

哈佛公开课 - 幸福课课程节选