Science is a tool of Common Sense. When we insist that all valid information come from science or doctors, Common Sense becomes uncommon or lost forever.

Science is a first-rate piece of furniture for a man's upper chamber, if he has common sense on the ground floor.

Science is nothing but trained and organized common sense differing from the latter only as a veteran may differ from a raw recruit: and its methods differ from those of common sense only as far as the guardsman's cut and thrust differ from the manne

Probability theory is nothing more than common sense reduced to calculation. -1819

A lot of it's common sense mixed with science.

Science is organized common sense where many a beautiful theory was killed by an ugly fact.