Andrew Hearst and Zach Cutler know their ventures will take persistence, something economist Nake Kamrany says all entrepreneurs need, regardless of age.

VOA: standard.2010.01.31

And we need to get clear on the nature of identity or persistence or, more specifically, personal identity.

同时还要弄清同一性及,持存的本质,具体说来就是,个人同一性

耶鲁公开课 - 死亡课程节选

So the problem of existence through time,or persistence through time, shouldn't be called the problem of personal identity,but just the problem of identity.

所以积年累月下来存在的问题，就不该叫做个人认同感的问题，而仅是认同感的问题。

耶鲁公开课 - 死亡课程节选

But Kamrany says persistence eventually turns many start-ups into successful ventures.

VOA: standard.2010.01.31

What's the nature of persistence of identity over time?

同一性的持存本质是什么

耶鲁公开课 - 死亡课程节选

Nesterenko says if there is persistence, political will, and genuine desire to make a qualitative move away from the level of relations that characterized recent years and away from the standstill that affected the bilateral agenda, then a new treaty is entirely within reach.

VOA: standard.2009.04.02