I have learned the most important language by meeting a wide range of people from different cultures.
我接触到许多来自不同文化的人,掌握了最重要的语言。
and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
因此,尽管制造这些工具的人的骨头早已荡然无存,但远古时代的石头工具却保存了下来。