Fundamental knowledge of mathematics is necessary for daily life.

That disease could potentially have fatal consequences.

His paintings depict a dreamy world.

Looking at it overall, I think this project is a success.

He always has a friendly attitude.

He always has an optimistic attitude.

He is facing economic problems.

Japanese history had a feudal social structure for a long time.

This is my personal opinion.

His music is very avant-garde, and some people might not understand it.