写作是一种不被中断的谈话方式。

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.

People with a clear sense of identity know who they are and what they stand for. They have a strong sense of self and are not easily swayed by others.

天然气作为清洁能源，将在我国能源结构调整中发挥重要作用。