The south of Cangzhou,there is a temple near the river,Front Gate collapsed monastery in the river,the two stone animals in front of the sink in the river.After more than ten years,the monks to raise money to build temples,and find the stone animals in the river,did not find.The monks that stone animals drift down the stream to the downstream.Then draw a few boats with iron,palladium,swim down to find any trace of ten li,no stone beast.A scholar teaching in the temple,heard it said:"you guys can't imagine things.This is not the wood,how can be the flood surge away?Should be the characteristics of this stone is hard and heavy,the characteristics of the sand soft floating,buried in the sand stone,deeper and deeper.Down the river to find the two stone beast,not crazy?" We are convinced that this is the appropriate exact speech.A river of old soldiers heard this point of view,smiled and said:"who is lost in the big rock in the river,should be the upper reaches of the river to find.Because of the characteristics of stone is hard and heavy,the characteristics of the sand soft floating,water can not be washed stone,(but) water recoil force,will form a pothole in local scouring sand beneath stones in water.More and more deep,rushed to the bottom half of the stone,stone must fall in the pit in the.Like this impact,the stone will again turn over forward,turn to stop,so the stone animal stone instead of upstream.To the downstream looking for stone animals,is crazy; look for them in the autochthonous depths,not more crazy?" The monks in accordance with the old soldiers do,indeed as expected in the upstream several miles to find the stone animals.Things in the world,only know things one way,but don't know it's a case of too much,can according to some truth to subjective judgment?