Don't wait until you're hurt to comfort yourself, who can handle it when it's cold or hot; Don't wait until you're gone to understand how to cherish. This world can't produce regret medicine; Don't wait until you're heartbroken to piece together apologies, a broken heart can't heal again; Don't wait until everyone is gone to understand the other person's kindness. There is a helpless word called 'it's too late'. good night!