塔尔博士毕业于哈佛大学，他拥有心理学硕士、哲学和组织行为学博士学位。他所开设的“积极心理学”和“领袖心理学”，被哈佛学生们推选为最受欢迎率排名第一和第三的课程。选修这两门课程的哈佛学生超过了总人数的20%。
我们来到这个世上，到底追求什么才是最重要的？塔尔博士坚定地认为：幸福感是衡量人生的唯一标准，是所有目标的最终目标。
Hints:
Harvard
我们来到这个世上，到底追求什么才是最重要的？塔尔博士坚定地认为：幸福感是衡量人生的唯一标准，是所有目标的最终目标。
Hints:
Harvard
Positive psychology, studying it, applying the ideas to my life has made me significantly happier. It continues to make me happier. And it was when I realized the impact that it had on me that I decided to share it with others. That's when I decided that I want to be a teacher and teach this field. So this is positive psychology, psychology 1504. And we will be exploring this new, relatively new and fascinating field and hopefully we will be exploring more than the field, ourselves. When I first taught this class was back in 2002, I taught it at a seminar and had eight students. Two dropped out, that left me with six. The year after, the class became slightly larger, I had over 300 students. And then the third year when I taught it, which was the last time, I had 850 students in the class making it at that point the largest course at Harvard. And that's when the media became interested.
研究积极心理学并将其应用到我的生活中，这明显使我变得更幸福了。并且让我继续幸福下去。当我意识到这些发生在我自己身上的影响时，我决定将它与别人分享。于是我决定要成为一名教师并且教授这个领域。这就是积极心理学，心理学1504课程。我们将探索这个相对新兴并且引人入胜的领域，希望我们能从中悟出领域之外的东西—我们自己。我第一次教这门课还是在2002年，我当时教的是研讨班，只有8个学生。还有2个人中途退出，只剩下6个学生。1年后，班级规模稍微大了点，我有了300多个学生。然后就是第3年，也是我最后一次授课，我有了850名学生，以至于它成了当时哈佛最大的一门课。于是媒体也感兴趣了。