The main function of all your cells, and all your tissues, and all your organs is to maintain this homeostasis, which allows you to live in a changing environment.

你所有细胞,所有的组织,所有的器官最主要的功能,就是维护这个内稳态,使你能够以不变应万变

耶鲁公开课 - 生物医学工程探索课程节选

A progenitor cell, the definition, it just means it can generate the cells that are typical of that tissue or that organ, so it's capable of becoming these mature classes of cells.

祖细胞的定义就是,它能产生那个器官或者组织内的,所有的典型细胞,所以它可以成为那一类的成熟细胞

耶鲁公开课 - 生物医学工程探索课程节选

How do those differences between cells contribute to the properties of the tissues, which contribute to the properties of the organs, which contribute to the properties of a person and this maintenance of homeostasis?

这些差异化的细胞,是如何构成具有不同属性的组织,这些组织又构成具有不同属性的器官,器官又构成了不同的人,它们是如何维护内稳态呢

耶鲁公开课 - 生物医学工程探索课程节选