No matter whether you have lost or earned before, only by returning all your existing achievements to zero can you make room to accept new things and continuously surpass yourself. Most people often beat their chests at lost opportunities, but turn a blind eye to the opportunities in front of them. Those who live yesterday lose their past, those who live tomorrow lose their future, and those who grasp today have their past and future. Wise people use their supreme mind and hands to create a unique sky for themselves and build a stage for life. To enter is to settle down in order to fulfill one's aspirations, to retreat is to settle down in order to cultivate what one cannot. Therefore, to enter also has actions, and to retreat also has actions. Those who see small gains will never achieve great things.