I couldn't understand his actions.

It's difficult to understand his explanation.

He began to tell an old tale.

In this story, all of Tan's actions are absurd and incomprehensible.

His stories are always humorous and make everyone laugh.

He is thought to be insane.

He took a crazy action.

The Tale of Genji is the oldest story in Japan, written by Murasaki Shikibu.

I think all his stories are false.

The company overcame the economic crisis and achieved a remarkable resurrection.