So happiness is the most popular word we have heard through the past two years. Happiness is not only related to personal experiences and personal values, but also, it's about the environment.

我写歌不是为了拿奖，而是因为喜欢。

Innovation in fisheries must balance ecology and economy.

The way in which men produce their means of subsistence depends first of all on the nature of the actual means they find in existence and have to reproduce.