Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.

渔业管理的创新是平衡经济需求与环境管理的关键。

Passionate hatred can give meaning and purpose to an empty life.

道，真实可信，无为且没有形相，可以流传而不可以传授，可以得到却不能够看见；自己便是本根，没有天地之前就已经存在；鬼神天帝因它而化，天地因它而生；在太极之上而不为高，在六合之下而不为深，生在天地之先而不为亘久，长于上古之时却不为老。