English writers and public speakers sometimes repeat a word or a phrase three times in order to create an overall pleasing or satisfying effect on the listener or reader. The most famous quote in the English language using this rule of three is from the American writer and poet Gertrude Stein .....A rose is a rose is a rose. She hoped that by creating a strong mental image of a rose that somehow the rose would become real for the reader. A smile is a smile is a smile- is another variation of her famous line. Another example of this rule of three is this quote from former Prime Minister of England Tony Blair: "Ask me my three main priorities for government and I tell you education, education, and education." It is also expressed in other forms in the English language. In children's stories for example, there are "The Three Little Pigs," Goldilocks and the Three Bears,"The Three Blind Mice", etc.

maybe,just smile,then smile,and smile...

Ni hao Zhuge, That is when you are talking to someone who can't hear well ;)