We should think deeply about the reform of the social security system.

He understands his responsibilities as a working adult.

Changes in the social system inevitably occur with time.

His sociability is an important factor for his success as a leader.

Social justice means that all people are treated equally.

He is deeply interested in social issues.

He experienced the harsh reality of the underbelly of society.

He used to be a member of the Chinese gang.

The Soviet Union was once a socialist country.

The People's Socialist Republic of Albania was once an existing country.