生活是个婊子，死亡是她的姐妹。

指事物之间相互依存、相互制约的关系。

"The past is a shadow that follows us, no matter how fast we run."

The past is a shadow that follows us, but it is up to us to decide whether it will darken our future.

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.