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When I was a child, I always wanted to be a superhero. I wanted to save the world and make everyone happy.
小时候，我一直梦想成为一个超级英雄。我想要拯救世界并让所有人快乐。
But I knew that I'd need superpowers to make my dreams come true.
但我知道我需要拥有超能力来实现梦想。
So I used to embark on these imaginary journeys to find intergalactic objects from planet Krypton, which was a lot of fun, but didn't yield much result.
于是我经常幻想在银河间寻找超人的故乡氪星，这可有意思了，只不过一直没有找到。
When I grew up and realized that science fiction was not a good source for superpowers,
长大以后，我才明白科幻小说并不是超能力的源头，
I decided instead to embark on a journey of real science, to find a more useful truth.
我于是决定踏上真正的科学旅程寻找更有意义的真相。
I started my journey in California, with a UC Berkeley 30-year longitudinal study that examined the photos of students in an old yearbook,
加利福尼亚州是我旅程的起点，我学习了加州大学伯克利分校一项长达30年的研究，这项研究对一本旧年册上学生的照片进行了分析，
and tried to measure their success and well-being throughout their life.
试图对他们毕生的成功与幸福进行测量。
By measuring the students' smiles, researchers were able to predict how fulfilling and long-lasting a subject's marriage would be,
通过衡量学生的微笑，研究者们得以预测一个研究对象的婚姻，持续时间与美满程度
how well she would score on standardized tests of well-being, and how inspiring she would be to others.
她在幸福感标准考试中能够得多少分，以及她能给其他人带来多少启发。
In another yearbook, I stumbled upon Barry Obama's picture. When I first saw his picture, I thought that his superpowers came from his super collar.
在另一本年册中，我翻到了巴里·奥巴马的照片。第一眼看到这张照片时，我以为他的超能力是来自于他超大的领子。
But now I know it was all in his smile.
但是现在我知道其实是来自他的微笑。
