"Money talks" is an idiomatic expression that means wealth or money can influence people's decisions or behavior, often in situations where money might be used to sway opinions or actions. It suggests that those with more financial resources may have more power or control in certain circumstances. This phrase is often used to comment on economic inequality or the impact of financial interests on ethics and morality. However, it's important to remember that while money can influence, it doesn't guarantee success or happiness.