And people give presentations and this is a photo of someone giving a presentation in a positive psychology summit.

被邀请进行讲座，这是一位学生,在积极心理学峰会上作讲座的照片。

哈佛公开课 - 幸福课课程节选

About 25% to 30% of our students are younger students who are just out of college and are looking to immerse themselves in positive psychology before going on into their professional training.

5%到30%的学生是年青人,刚刚大学毕业,希望在进行职业训练之前,先深入学习积极心理学。

哈佛公开课 - 幸福课课程节选