For the pamphlet by Thomas Paine see Common Sense (pamphlet)

Common sense means what people would agree about. It is a personal judgement based on the facts of a situation. Common sense is usually the simplest and most direct account of a situation. It is the knowledge and experience which most people have, or should have. The Cambridge Dictionary defines it as, "the basic level of practical knowledge and judgment that we all need to help us live in a reasonable and safe way".