If you ask someone to name the senses, they'll probably say: 'seeing, hearing, smell, taste and touch'. But what about the sixth sense? Most people are not sure what that is.
Different people have different ideas about the sixth sense. Usually we call it 'common sense'. It isn't like the other senses because it isn't linked to a part of the body, such as seeing with the eyes, smelling with the nose and hearing with the ear. It could have something to do with the brain, but is isn't something we learn at school.
Common sense is what we use when we decide what to do in a certain situation. For example, what do we do when we lock ourselves out of the house, or how do we drive when the road is wet and dangerous.
Common sense doesn't usually come from the heart. So it isn't very useful when one has to decide about a personal matter, for example in choosing a marriage partner.
But not everyone seems to have the same amount of common sense. The Frenchman, Voltaire, once said: 'Common sense is not so common.'
