儿子与朋友闹翻了,大吵了一架。回到家,儿子向父亲大发牢骚,说全是朋友的不对。父亲不说话,沉默地听完了儿子的牢骚,然后取了一张很大的白纸,在上面点了一个很小的黑点,然后问儿子看见了什么。“黑点!”儿子很果断地说。父亲又一次问儿子看到了什么,儿子依然说看到的是黑点。“太可惜了。难道除了这个黑点外,你没有看见一张白纸吗?” Son and friends fall out, a fight. When I got home, my son complained to his father that he was not a friend. Father did not speak, listened to his son’s silence in silence, then took a big piece of white paper, dotted a small black dot above, and asked his son what he saw. “Black spots!” Said the son decisively. My father once again asked his son what he saw, and his son still said that he was seeing a black spot. “It’s a pity. Did you not see a piece of white paper besides this black spot?”