But the environmental waste expert concedes that for the time being, landfills are the only practical option.

VOA: standard.2010.08.05

There's very much economic consideration going on, and women just being very practical.

经济的考虑会大量地卷入其中，也有的女性只是很实际。

普林斯顿公开课 - 人性课程节选

The natural laws for Hobbes are not divine commands or ordinances, he says, but they are rules of practical reason figured out by us as the optimal means of securing our well-being.

对霍布斯来说，自然法不是神圣的法令,或者条例，但这些是,我们发现的实践理性的法则,就像一种最佳的方式保护我们的幸福生活。

耶鲁公开课 - 政治哲学导论课程节选