Success needs both hard work and luck. we can’t refuse every successor diligence, but luck is important. Luck is the appropriate time, it is a chance to grow up or collapse. For example, the richest businessman in my country, Jiarawanon, has both keys to success. He imported plant seeds from south China to sell in Thailand many times. He does not have any business competitors at that time, because Thai people don’t know about business and his plant seed is different from a local plant. After he got a big prize from this business, he improves to open minimart nationwide and cooperate with the government to monopolize all markets in Thailand now. As we can see, he not only worked hard to bring goods from China to Sell, he also had a piece of good luck that his product is best-selling, and the government is welcome him. 
Success needs both  
hard
 work and luck.  
we
 can’t refuse every successor diligence,  
but
 luck is  
important
. Luck is the appropriate time, it is a chance to grow up or collapse.  
For example
, the richest businessman in my country,  
Jiarawanon
, has both keys to success. He imported plant seeds from south China to sell in Thailand  
many
 times. He does not have any business competitors at that time,  
because
 Thai  
people
 don’t know about business and his plant seed is  
different
 from a local plant. After he  
got
 a  
big
 prize from this business, he  
improves
 to open  
minimart
 nationwide and cooperate with the  
government
 to monopolize all markets in Thailand  
now
. As we can  
see
, he not  
only
 worked  
hard
 to bring  
goods
 from China to Sell, he  
also
 had a piece of  
good
 luck that his product is best-selling, and the  
government
 is welcome him.