So your position may be not believed, and I want to claim that that's connected to the idea that you can't commit yourself to your policies.

也就是说选民未必相信你的立场,我要指出的是这与,你无法执行相应政治策略是相关的

耶鲁公开课 - 博弈论课程节选

That has been attacked and is largely not believed these days for a whole lot of technical reasons that I don't want to trouble you with right now.

但这种说法却因为许多技术上的问题被抨击,而且如今并不为大多数人所相信,现在我并不想用这些问题来困扰你们

耶鲁公开课 - 古希腊历史简介课程节选