In my solitude I have pondered much on the incomprehensible subjects of space, eternity, life and death.

In my solitude I have pondered much on the incomprehensible subjects of space, eternity, life and death.

在我孤独的时候，我对空间、永恒、生与死这些不可理解的问题思考了许多。

-- Alfred Russel Wallace 华莱士