standers-by see more than gamesters

used to imply that people who are not directly involved in a situation often have a better understanding of it than those who are deeply involved, and so, are able to make more objective judgments

The origin of the proverb "standers-by see more than gamesters" is believed to date back to the 16th century. The phrase suggests that people who are not directly involved in an activity or situation are often able to observe it more clearly and objectively. It emphasizes that those who are not emotionally or personally invested in something can have a better perspective and notice things that participants might overlook. The proverb is commonly used to highlight the value of an outside viewpoint, as outsiders can sometimes offer insights that those directly involved may miss.