What he means is that we are ill because we do not cultivate what we are about enough.

他是说，我们正在生病，是因为我们没有,尽力做好我们本该做到的事。

哈佛公开课 - 幸福课课程节选

Children get diseases from a class of viruses called rotaviruses, for which we have no vaccine, and- and so no way to protect them.

儿童因轮状病毒而生病,而我们没有针对这种病毒的疫苗,所以,所以我们没有办法保护儿童

耶鲁公开课 - 生物医学工程探索课程节选