We're continuing to evolve not just as a human rights concept but certainly as nations and our ethical understandings of what is appropriate.

我们在发展，不单单是人权的观念,我们的国家，道德观念,都在向前发展。

普林斯顿公开课 - 人性课程节选

A new concept came up which is Neurogenesis or Neuroplasticity, meaning our brain actually changes and transforms.

一个新的概念叫做神经形成或者神经可塑性，是指我们的大脑实际上会改变和转变。

哈佛公开课 - 幸福课课程节选