The lost cultures 200 years ago，the English great writer Dickens was borned.his excellent mottoo in have shocked many people ,and so do i. "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness,…………we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way" i think it is so suitable for our country today .With the rapid development ,many social problems have revealed .Also,many people from other countries still have prejudice to us and even hate us.But,in my opinion ,a huge problem which many people haven't realized is around us :There are many valueable culcures,not just for us,also far the world is being breaked and disappeared. To be honest,mast of our present cultures was lost in history,especially buildings ,patings,literature and calligraphy.Why could lots of the beautiful buildings in Europe hundreds years ago still complete today,but it's hard for us? Many we don't have the realize very much to protect our cultures.And a huge damage to them is war.Nearly every several hundreds years ,People of China wouldstart a revelotion (maybe war is more suitable), and set up a new "imperial court",and many of the new imperial court (sometimes were the people)would breaked or looted the last imperial court 's builings and works which the Rulers made many people ,sometimes tenth of the country's people builded.so is the Great Wall.But,those people in the end of the imperial count many just burn the great buildings up . Such as the EPang Palace ,which builded nearly 2200 years ago,one floor of which could hold 10 , 000 people ,and cutted all the trees of the mountain Li. just a few years later .the revolt army burned it ,the fire didn't destoryed for 3 months.How regretful! In modern times , the number of wars can't be named,Made many cultures passed away.Today, this problem is still serious,many companys and people destoryed the old buildings in order to make space for houses,factories.This year ,the former home of the outstanding architect linhuiyin and liangsicheng ,who protect the Nara during the world war 2 and founded many old buildings was disbanded. So,let's protect the cultures our ancestors left for us,and don't let them go any more.