The circumstances of the world are continually changing, and the opinions of man change also; and as government is for the living, and not for the dead, it is the living only that has any right in it.

农民是最早的环保主义者，我们必须支持他们的工作。

熵是对随机变量不确定性的度量。

Behavior, as such, is not to be regarded as a mere chain of muscular contractions, but rather as a purposive and cognitive affair.

译文：不装聋作哑、不装傻充愣，就当不了别人的公公、婆婆。