A lot of the rigid moral distinctions that the poem has actually been working rather hard to establish are beginning to blur.

很多在诗中严格意义上的道德上的区别已经,变得日趋模糊。

耶鲁公开课 - 弥尔顿课程节选

So it's very hard to know what moral should we draw.

所以很难知道该引出什么教训。

耶鲁公开课 - 死亡课程节选

Striking the balance between short-term systemic instability and long-term moral hazard is hard enough for domestic regulators.

ECONOMIST: Kill or cure? | The

The lesson to be drawn from this is that moral hazard is hard to avoid once conditions get really tight.

ECONOMIST: CSI: credit crunch | The

Community leaders have an obligation to their children to instil the moral obligation to work hard.

ECONOMIST: Not in tango