He experienced the harsh reality of the underbelly of society.

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

He is deeply interested in social issues.

He deeply believes in the principles of socialism.

Maintaining social order is the responsibility of all of us.

He understands his responsibilities as a working adult.

After graduating from university, you have to prepare to enter the real world.

The Address Resolution Protocol is a means to identify the physical address of a device on the network.

He is the type of person who thinks it's a moonlit night if it's bright, so he only has a one-sided perspective.

He thought deeply and said, 'I think, therefore I am.'