A life, a fulfilling life, a rich life includes ups and downs, includes pain and getting up again, includes failure and getting up again.

生活，令人满意的生活，丰富的生活包括了起起落落，包括了痛苦和再次振作，包括了失败和再次奋斗。

哈佛公开课 - 幸福课课程节选