Topic4: Don't strike own

The human live in this world , it is so difficult. We have to slove some smarmy questions and these way are so hard. But we will meet some happy things and let us so happiness. Actually,  some difficult question will be help u to improve own in life or job, because u will know own's problems, and to reform it，let us better. I think we should thanks for someon which is suggest for u. For them ,  will let us know about how to live in this world better.