Other cities,including Philadelphia, Washington and Los Angeles, are making plans to use the San Francisco program as a model.

VOA: standard.2010.07.26

But I want to go back there because what I want to do now is, I want to change some critical assumptions of that model and see that by making those changes, we're going to get some very different outcomes.

但我回来的原因是,我想改变一些模型的关键假设,并看看通过这些改变,我们将得到何种不同的结果

耶鲁公开课 - 博弈论课程节选

We would like his life be a model for making a difference in the lives of others and to bring about efforts to end human misery for all mankind".

VOA: standard.2009.09.13