And this paradox was noted even in Hobbes' own time.

这个悖论甚至在霍布斯的时代也是非常有名的。

耶鲁公开课 - 政治哲学导论课程节选

So this is a question that I want to continue today, to consider what the trial of Socrates means and I want to begin by going back to a problem or a paradox that I ended the class with last time.

这就是我今天要继续的问题，考虑苏格拉底受审的意义,我想要先回到一个问题,一个悖论,也是我们上堂课所遗留的。

耶鲁公开课 - 政治哲学导论课程节选

The duplication paradox emerges when time travelers exist in the same time and place as their past or future selves.

WSJ: The Four Rules of Time-Travel Movies

In 2008, economists Justin Wolfers and Betsey Stevenson, both of the University of Pennsylvania, published a paper where they reassessed the Easterlin paradox using new time-series data.

FORBES: Jeff Sachs and the Economics of Happiness

But there's a paradox buried inside Paul's rise in the Republican field, a time bomb ticking away.

CNN: Will his 'Paulbots' torpedo Ron Paul in Iowa?