Common sense could, at face value, have several definitions applied to it: Firstly, it is 'common' in that all agree to the idea and accept it as obvious. No amount of research or investigation need go into establishing its existence or reasons for its propositions in order that one accept it. It is self-evident, therefore of sound judgment, therefore, no doubt, accepted by the 'normal' rational person. Using a circular definition, it is sense that is held in 'common' by 'common' people.

'Common sense could be thought of as logical thinking in the hypothetical-deductive manner that is innate in us, i.e. If p then q; an intrinsic sense of reasoning that is innate and instinctive in all rationally reasoning humans. In this sense it is also an autonomous and natural problem-solving technique.

Philosophers, however, find the definition of common sense to be less facile. Indeed, common sense remains one of...
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