坚持住，成功就在下个路口等你。

Certification standards are the compass for responsible forestry.

The key to success is to keep pushing yourself.

The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.