People always say that one’s life can’t be a smooth sailing.It means people will meet all kinds of difficulties and they are easily frustrated.The one who gets over difficulties will become successful.When we meet difficulties,we must learn to face it in an optimistic way,then we can see the hope and have the faith to move on.The difficult moments are just small interludes in our lives.As the saying goes,failure is the mother of success.We can learn lessons from failures and then when the time comes,we will succeed.