Many people like to pick up sesame seeds, rather than picking watermelons, but often go to sesame-foolish.
Picking up sesame human problem is not only very inefficient use of time, but also because they are getting accustomed to very low pursuit, once the mentality of people to become very low, it is difficult to upgrade yourself to go higher and higher level on.
Watermelon will not be tempted to pick up those petty, they need to have sighted the long term.
Watermelon is the ability to pick up and can not rely on luck.