What is the explanation for his behavior?

Please clean up your room right now.

I want to learn the ancient wisdom of the I Ching.

I am thinking of learning the teachings of the I Ching.

Toshin came up with a sagacious way to solve the problem.

He is outstanding in his field.

That female bear was fighting to protect her children.

Shunji is my best friend.

No problem, I will do that job.

That proposal is completely unthinkable.