Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.

Efficiency in energy production is the cornerstone of sustainable development.

我们不是从祖先那里继承海洋，而是从子孙那里借用它。

真相往往比小说更令人惊讶。