劳动的自然价格是使劳动者能够生存并延续其后代所必需的价格，既不增加也不减少。

In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed.  

"In the end, we will remember not the words of our enemies, but the silence of our friends."

过去是唯一闻起来香甜的已逝之物。