This raises the exciting possibility that life may have existed in the past on Mars.

VOA: special.2009.12.30

Obviously philosophers in the past have speculated about life after death.

显然，过去的哲学家们已经,在猜测是否有来世。

普林斯顿公开课 - 人性课程节选

Yevgeniy Dubovik says there is no point in dwelling on the past, because everyone knows about the famine anyway and life after collectivization was fine.

VOA: standard.2010.03.17