I plan to write a short essay tonight.

It's difficult to remember the stroke order of kanji.

He picked up a pen to write down the poem.

I can't see an end to the argument with him.

He is supporting that theory.

We gathered to discuss that issue.

He has expert knowledge.

He is studying computer science at a specialized school.

He is a specialist fool, with no interest in anything outside his field.

He couldn't say anything about issues outside of his field of expertise.