Let me answer your question. Keep your mouth shut, say what you can, don't talk nonsense if you can't, and talk less. A lot of things, often because of talking too much, bring a lot of trouble to yourself or others. Take your legs, that is, do what you should do boldly, and don't let others rush us. These two sentences mean that we talk less and do more, say more and do better, and prove everything with practical actions.