I have no way of knowing what he is thinking.

He knows that pain through his own experience.

The macaw is a bird with colorful feathers.

The painted bunting is a bird with very vivid colors.

She described the pain of a broken heart as tears.

He emphasized his belief by saying, 'I believe in order to understand.'

I don't know a thing about him.

My pet budgerigar is very smart.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

He is the type of person who understands ten from hearing one.