His thought is very unique.

His opinion is always unique.

I advised him to express his own opinion.

Although he was tired, he continued to work.

Despite my opinion, he pushed through with his own thoughts.

His actions have a deep connection to all of us.

He has no involvement in the incident at all.

He is always concerned about his health.

His actions are a matter of concern to all of us.

I became deeply involved in his problem.