Opportunity always exists, but if you fail to grasp it,do not complane
anyone else, because your failure is due to the fact that you are not
excellent enough. Never treat time as rubbish.Only when you measure
time can you improve life quality. the shortest line is not necessary
the straight line between two points. Sometimes you may reach the
destination faster through some twists and turns. Stop when error
occurs; give up when it's impossible to get. it's not good to hurry
up; the most important thing is to seize the correct direction.