Of course, sooner or later, despite our best effort to avoid it, the limits of existence will impose themselves on us nonetheless.

当然，尽管我们尽了最大的努力去避免，但生存的极限迟早还是会强加给我们。

That we have a separate volition detached from nature and our thoughts and actions occur voluntarily and can impose themselves on nature.

我们有一个与自然分离的单独意志, 我们的思想和行为是自愿发生的, 可以强加于自然。