The knowledge of the past stays with us to spur us on to new achievements.

The function of freedom is to free someone else.

我们都是陌生人，甚至对自己来说也是。

"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized."

解释：要想人爱护自己，必须先爱护别人；要想人顺从自己，必须先顺从别人。