Life is like a play, being watched by angels and the multitude. Key points in this play are the decisions you make. How well you act hinges on the way you make decisions. From the basis of heart-knowledge-fulfillment theory, this study first distinguishes individuals' habit of decision-making into twenty four types, each corresponds to eight trigrams. Secondly we design four psychometrics to help the readers defined their own habit of decision-making. In the same time possible blind spots are also listed to match with eight kinds of habitual decision-making. In order to practice our research, we extend this theory into Shakespeare's tragedy: Hamlet by analyzing Hamlet's habitual decision-making, transition in mind and possible blind spots in decision-making. |