There was a spot on his shirt.

I have been to Ahmedabad.

She described the pain of a broken heart as tears.

I don't know a thing about him.

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

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.

General relativity is a theory of physics proposed by Einstein.

He solved the problem in a scientific way.

This reaction occurs through a chemical process.

He is good at tactical thinking.