He often quotes proverbs in his conversation.

His words were like water off a duck's back to her.

He is a frog in a well, not understanding how vast the world is.

The cane toad is causing a big problem in Australia.

His stubbornness sometimes causes problems.

He is a very stubborn person.

He said, 'This problem cannot be solved.'

This dress fits me perfectly.

This book is very interesting.

He is my best friend.